Tuna Salad Power Bowl
A proper bowl of food built on two tins of tuna, a heap of crunchy veg, and a creamy dressing that doesn’t cost you the day — 44 grams of protein for around 350 calories. No cooking, no fuss, just a cold, sturdy plate you can throw together when the cupboard looks bare and you’re too tired to think.
Plate 01 / Finished
Tinned tuna and I have a long history. When I was a young man with a stage to climb onto and no money to speak of, tuna was the protein I could afford by the case. I ate it out of the tin standing in the kitchen, fork in one hand, gym bag still on my shoulder. It kept me alive and it kept me on the iron, but I’ll be honest with you — I hated it. Dry, sad, eaten over the sink like a man being punished.
It took me years to learn the obvious lesson: tuna isn’t the problem, what you do around it is. Give it a creamy dressing that isn’t drowning in calories, pile it on something with real crunch, and add the little sharp things — pickle, lemon, a bit of red onion — that wake the whole thing up. Suddenly it’s not a punishment. It’s a genuinely good lunch that happens to be very kind to your macros.
This is the bowl I make when the fridge is nearly empty and the day got away from me. No pan, no heat, ten minutes start to finish. Two tins, some veg, a spoon of Greek yogurt doing the work that mayonnaise usually does. It lands light, it fills you up, and you walk away feeling fed rather than robbed. That’s the whole point of this place — you don’t have to suffer to eat well. I’ve got you.
01Who it’s for & when to eat it
Tinned tuna is one of the best lean bases a person can keep in the cupboard — cheap, shelf-stable, and absurdly high in protein for the calories. What you build around it decides the job it does. Here’s how I steer it.
The default bowl
Two tins of tuna in spring water, a big pile of crunchy veg, and a yogurt-based dressing. Huge volume, low calories, properly filling. This is my go-to desk lunch when the day’s calories are tight.
Build it up
Same bowl over a base of rice or with a warm pitta and a spoon of olive oil through the dressing. Easy clean calories without the heaviness of anything fried. Numbers are in the variations below.
Steady fuel
Tuna packed in oil instead of water, a handful of olives, half an avocado folded through. More healthy fats, the same lean protein, a satisfying lunch that keeps you level through the afternoon.
Timing: this is a cold, no-cook bowl, so it’s brilliant for a packed lunch or a fast meal between things. It travels well in a sealed container and only gets better as the dressing settles into the veg.
02Ingredients
Makes 1 big bowl — one generous serving. Doubling for two? Just scale everything up; there’s no cooking to manage, so it’s the easiest recipe I’ve got to batch.
Servings 1 · adjust on the live recipe card- Tinned tuna in spring water, drained2 tins · 240 g · 8.5 oz
- Cucumber, diced120 g · 4.2 oz
- Cherry tomatoes, halved100 g · 3.5 oz
- Mixed leaves or shredded romaine60 g · 2 oz
- Red onion, finely diced30 g · 1 oz
- Greek yogurt, 0% fat3 tbsp · 60 g
- Dijon mustard1 tsp
- Lemon, juice of½ lemon
- Pickle or gherkin, chopped optional1 tbsp
- Black pepperto taste
- Saltto taste (go light)
Swaps I actually use: no Greek yogurt? Light mayo works, but it’ll add calories — half yogurt, half mayo is a lovely middle ground. Tinned salmon or shredded leftover chicken swap in for the tuna without changing the bones of the bowl. No fresh tomatoes? A handful of sweetcorn or grated carrot brings the same sweetness and crunch. A few capers instead of pickle add the same sharp little hit for almost no calories.
03Step by step
Press out the water properly
Open both tins and drain them well, pressing the tuna with the lid to squeeze out the spring water. A watery base makes a sad, soupy bowl — get it as dry as you can before it meets the dressing.
Magnus says: press the tins like you mean it. Dry tuna takes the dressing; wet tuna just dilutes it.
Yogurt, mustard, lemon
In the bottom of the bowl, stir together the Greek yogurt, Dijon mustard and the lemon juice with a little pepper. You want a creamy, tangy dressing that clings — taste it and adjust the lemon to your liking before anything else goes in.
Coat it, don’t mash it
Flake the drained tuna into the dressing along with the red onion and the chopped pickle if using. Fold it gently so the tuna stays in proper flakes — you’re coating it, not making paste. Season with a light pinch of salt.
Magnus says: keep some texture. Mashed tuna turns to baby food; flaked tuna eats like a meal.
Leaves, cucumber, tomato
Pile the mixed leaves, diced cucumber and halved cherry tomatoes into the bowl, or scatter them around the dressed tuna. This is where the volume comes from — load it up, it’s nearly free on the calories and it’s what makes the bowl feel like a proper meal.
Bring it all together
Toss everything together so the creamy tuna coats the veg, taste once more for lemon and pepper, and eat it straight away while the leaves are crisp. A final squeeze of lemon over the top never hurts.
04The spec sheet
Real numbers, calculated — not guessed. This makes one big bowl, about 600g of food. Here’s what the whole serving and a flat 100g actually give you.
| Nutrient | Per serving | Per 100g |
|---|---|---|
| Energy | 350 kcal | 58 kcal |
| Protein | 44.0 g | 7.3 g |
| Carbohydrate | 16.0 g | 2.7 g |
| — of which sugars | 9.0 g | 1.5 g |
| Fat | 11.0 g | 1.8 g |
| — of which saturates | 2.5 g | 0.4 g |
| Fibre | 5.0 g | 0.8 g |
| Sodium | ~0.70 g | ~0.12 g |
Very low. Tuna and raw veg are almost all protein and water, so you get an enormous bowl for the calories — volume is your best friend on a cut, and this delivers it in spades.
A lifter’s metric, and a strong one. Most of these calories are pure protein — exactly what you want when you’re holding muscle while the scale comes down.
- Vitamin B12~4.5 µg · 188% DV
- Selenium~120 µg · 218% DV
- Vitamin C~25 mg · 28% DV
- Vitamin D~2.0 µg · 13% DV
- Niacin (B3)~18 mg · 113% DV
- Potassium~700 mg · 15% DV
Macros are calculated from standard food-composition data and will shift a little with your exact ingredients and brands. Micronutrient figures are estimates against general adult Daily Values. Numbers are for guidance, not medical advice — see our Nutrition Disclaimer.
05Bulk / Cut / TRT variations
One base, three jobs. The tuna and veg stay the same — you adjust the carbs and fat around them. Macros below are for a full serving.
The lean default
Tuna in spring water, all yogurt in the dressing, a mountain of raw veg. No grains, no oil. Maximum volume for minimum calories — this is the bowl I live on at my desk when calories are tight.
Build it up
Same bowl over 150g cooked rice or with a warm wholemeal pitta, and a spoon of olive oil through the dressing. Clean, easy calories that go down without bloat — great for getting food in around training.
Steady & balanced
Tuna in oil, half an avocado folded through, a handful of olives. More healthy fats, the same lean protein — full and satisfied for the afternoon without overshooting your day.
06Meal prep & storage
This is one of the easiest things in my kitchen to prep ahead — no heat, no last-minute cooking. The only trick is keeping the crunchy veg and the dressed tuna a little separate until you’re ready to eat.
Dressed tuna keeps well in an airtight container for up to three days. Store the leaves separately so they don’t wilt, and toss them through just before eating.
I don’t freeze this — the yogurt splits and the veg turns to mush on thawing. It’s a fresh bowl; keep tins in the cupboard and build it to order.
Mix the dressed tuna in the morning, pack the veg on top, and shake it together at lunch. Barely any effort and it tastes properly made.
If you’re prepping for the week, my honest advice is to make a double or triple batch of the dressed tuna and keep cut veg in a separate tub. Two minutes to assemble each day, and you’ve got a high-protein lunch that beats anything you’d buy at a shop counter.
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07Common questions
Is tinned tuna actually good protein? +
It really is. Tuna in spring water is one of the leanest, highest-protein foods you can keep in a cupboard — around 25g of protein per drained tin for barely any calories or fat. It’s cheap, it lasts forever, and two tins gets you most of the way to a full meal’s worth of protein. I’ve leaned on it for twenty years.
How much tuna is safe to eat? +
Tuna does contain some mercury, so it’s sensible not to eat it every single day. UK and US health guidance suggests limiting tuna to a few servings a week, and being more careful if you’re pregnant. I rotate it with salmon, chicken and eggs so I’m never leaning on one protein. Check current NHS or FDA guidance if you’re unsure — that’s the honest answer.
Can I use mayonnaise instead of yogurt? +
You can, but it’ll cost you. A tablespoon of full-fat mayo adds roughly 90 calories of pure fat, which on a cut adds up fast. Greek yogurt gives you the same creaminess for a fraction of that, plus a little extra protein. If you miss the richness, do half yogurt and half light mayo — best of both.
How do I turn this into a proper bulk meal? +
Add carbs and a touch more fat. Serve the bowl over 150g of cooked rice or with a warm wholemeal pitta, and stir a spoon of olive oil into the dressing. That takes it from around 350 to roughly 620 calories with 48g protein — clean calories that go down easy. See the Bulk variation above for the full numbers.
Will this keep for a packed lunch? +
Beautifully. The dressed tuna actually improves after a few hours in the fridge as the flavours settle. My only tip is to keep the salad leaves in a separate pocket of the container and toss them through right before you eat, so they stay crisp rather than going limp.
This bowl lives inside a full week of meals.
This tuna power bowl is one lunch in my 7-day cutting plan — seven days of high-protein, low-calorie meals with the macros counted and the grocery list written. You pick the goal; I do the maths.
See the cutting meal plan →08Pairs well with
Magnus Olafsson
I’m Magnus — twenty years under the iron, from a cold gym in Stockholm to the classic-physique stage, and now mostly in my kitchen in a pink apron. I’ve cut for shows, bulked through winters, and I’ve been on TRT since I was thirty-five. I know what it takes to eat for the body you’re chasing, and I know it shouldn’t come with a side of shame.
Everything here is food I actually cook and macros I actually count. I don’t diagnose, I don’t promise, and I never make a number up. I just feed you well and tell you the truth.
Slim Diet Era shares recipes and general nutrition information. It is not medical or dietetic advice, and we do not provide guidance on obtaining or using any controlled substance. See our Medical Disclaimer and Nutrition Disclaimer.