Key Takeaways 6 generous portions for about £5.70 total — roughly 95p each with 28g protein per serving. Tinned tuna in spring water keeps the cost and calories down without losing protein. Bakes in one big dish, portions into containers, and reheats from the fridge in 3 minutes. Freezer-friendly for up to 3 months — a proper high-protein standby for busy weeks. There is a special place in every British kitchen for the tuna pasta bake. It’s the dish of student houses, family teas and “there’s nothing in the fridge” evenings — and it turns out to be one of the best-value high-protein meals you can batch cook. This cheap…