Heat oil in a wide casserole or fry pan over a medium heat. Fry onion and garlic until soft. Stir in tomato paste and cook for a further minute

Add beef mince and cook, breaking up with a wooden spoon. Once browned, drain off fat

Add passata, stock and dried herbs. Bring to the boil, add penne and stir into sauce. Reduce heat to a simmer, then cover and cook for 20 minutes, or until pasta is al dente. Stir occasionally adding 1/2 cup water if mix becomes dry

Removed from heat. Dollop ricotta on top of pasta, sprinkle over cheese blend and grill for 5-10 minutes or until golden. Finish with fresh basil