Cook the pasta according to the instructions on the packet. Add the beans for the last 6 minutes, then drain.
Meanwhile, heat the oil in a frying pan over a medium-high heat and cook the mince for 10 minutes, until browned and no pink colour remains. Add the garlic, herbs, tomatoes and sauce, and cook for a further 10-15 minutes.
CHILDREN: Stir the pasta and beans into the beef mixture. Tip into an ovenproof dish, top with the bread pieces and scatter over the cheese.
Grill under a preheated grill until the cheese has melted.