I sometimes make this and all of the stuff should be in your pantry or fridge hopefully :
Easy sausage Pie

2 tsp oil
1 onion finely chopped or grated
6 thin sausages
1 carrot grated
2 zucchini grated
1 cup grated tasty cheese
1/2 cup plain flour
1 1/2 cups milk
3 eggs

Preheat over to 160 degrees, grease a 4cm deep 17.5cm x 24.5cm baking dish

Heat oil in a frypan over medium heat, add onion, cook stirring often until soft, remove to a bowl and add sausages. cook sausages

Once cooked - thinly slice the sausages.

Arrange sausages, onion, carrot zucchini and cheese over base of dish

Whisk flour and milk in a bowl until smooth, add eggs season with salt and pepper whisk to combine.

Pour over sausage mix, bake for 50-60 minutes or until set.

Hope this helps.