Sausage, Tomato & Onion Bake

Sausage, Tomato & Onion Bake Pack of 6-8 sausages1 onion (red or white)1 tin of chopped tomatoes4-5 potatoesKnob of butterSplash of milkSalt & Pepper to tasteWhat You Need (Optional)2 garlic glovesGood shake of mixed herbshalf a pepper sliced Put the potatoes...