Oven Baked Sausages & Tomatoes

Sausages
1 onion,sliced
5-6 garlic gloves
600 g cherry tomatoes
handful of basil leaves,thorn
olive oil or butter
salt,pepper

In the roasting tin toss everything together & season.
Bake at 200C 20-25 min or until ready.
Serve with mashed potatoes...