Baked bean & bacon casserole
Preheat the oven to 190°C/ 375°F/Gas mark 5.
Dry-fry the bacon in a frying pan until very crisp.
In a deep casserole dish, combine the beans, onion, ketchup, mustard and sugar. Mix thoroughly.
Crumble the bacon, and sprinkle over the baked bean mixture.
Heat in the oven, uncovered, for 10 minutes or until the sauce is bubbly. Serve hot.