Keep the screen awake with cook mode on the Good Food app.
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Method
step 1
Preheat the oven to 220C/fan 200C/ gas 7. Cook the pasta in salted water for 5 minutes less than it says on the pack.
step 2
Chop the onion as finely as possible and crush the garlic, fry the onion and garlic in a little olive oil until the onion starts to brown.
step 3
Add the chopped tomatoes to the pan and simmer for 5 minutes. Add the mascarpone cheese and stir until the cheese has fully melted into the sauce. Drain the tuna and add to the sauce.
step 4
Drain the pasta and add to the sauce, stir until the pasta is coated then transfer to a casserole dish. Sprinkle over the cheddar cheese.
step 5
Bake in the oven for 15 minutes or until the cheese is golden brown.