Tuna Pasta Bake
A quick, cheesy tuna pasta bake that's perfect for busy families.
Allergens: contains cereals containing gluten, fish, milk. Brands differ, so always check the labels on what you buy.
Per serving (approx.): 60g carbs · 7g sugars · 4g fibre. Estimates for carb counting, not medical advice. If you have diabetes, follow your GP or dietitian's advice.
Not every ingredient has a checked price at Aldi, Lidl, Asda, Morrisons, Iceland, so they aren't compared here.
Ingredients and prices
Swipe the table to see every supermarket.
| Ingredient | Tesco | Sainsbury's |
|---|---|---|
| Tuna (canned in water)pack 185g · use 185g | £0.65£0.45 per 100g | £2.49£0.43 per 100g |
| Penne pastapack 500g · use 300g | £2.40£0.48 per 100g | £1.38£0.14 per 100g |
| Chopped tomatoespack 400g · use 400g | £0.47£0.12 per 100g | £0.45 |
| Cheddar cheese (shredded)pack 200g · use 150g | £2.50£1.14 per 100g | £2.95£0.74 per 100g |
| Milk (semi-skimmed)pack 1L · use 200ml | £0.85£0.15 per 100ml | £0.85£0.15 per 100ml |
| Basket total (full packs) | £6.87 | £8.12 |
| Cost of what this recipe uses | £4.76 | £3.08 |
| Per serving | £1.19 | £0.77 |
Prices checked on 3 October 2026 from each supermarket's own listing or a price-comparison site. Each shop's unit price (or pack size) is shown under its price, and "cost of what this recipe uses" compares like with like (tap a price to see its source). Cheapest in each row is ticked. Prices, offers and pack sizes change; loyalty-card prices are not included unless stated.
You'll also need (from the cupboard): 1 tbsp vegetable oil, Salt and black pepper.
Method
The method is written for 4. For a different number, use the amounts in the table above.
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Nothing wasted: your leftover ingredients
Supermarkets sell set pack sizes, so you'll have some ingredients left. Here's how to keep them, and other recipes here that use them up.
- Penne pasta · about 200g left
Dry stores keep for months sealed in the cupboard, so nothing goes to waste. Use it in: Pasta with beans and spinach, Tuna & Sweetcorn Pasta Bake, Creamy Tomato & Hidden Veg Pasta Bake. - Cheddar cheese (shredded) · about 50g left
Keep wrapped in the fridge. Grate any extra and freeze it: it melts straight from frozen on pasta bakes and toasties. Use it in: Tuna & Sweetcorn Pasta Bake, Cheesy Bean & Veg Quesadillas, Cheesy Rice & Bean Burrito Bowl. - Milk (semi-skimmed) · about 800ml left
Keep in the fridge and use by the date on the pack; milk can also be frozen.
Storing leftovers
Cool leftovers and put them in the fridge or freezer within 1–2 hours. Eat fridge leftovers within 2 days, or freeze them. Defrost in the fridge and reheat only once, until steaming hot all the way through (Food Standards Agency guidance).