In nonstick pan, slightly brown sausage slices.

In a large bowl, combine 1.5 cup milk and soup. Stir in 1/2 cup onions, 1/2 cup cheese, 1 cup peas and sausage.

Transfer to Pyrex dish. Sprinkle with 1 cup onions and 1/2 cup cheese. Freeze.

When prepping to eat, thaw overnight. Preheat oven to 350°. Cook 2 cups pasta until done. Add to casserole. Cook casserole in 30 minute increments until done (160°).