Tortellini With Peas with mozzarella

3 tablespoons butter , divided 1/2 cup chopped onion 4 cloves garlic , minced 1 (14 ounce) can tomato sauce 2 cups sliced fresh mushrooms 1/4 cup chopped[...]

1 (9 ounce) package refrigerated cheese tortellini 2 green onions , sliced 2 garlic cloves , minced 1 teaspoon butter 1 teaspoon cornstarch 1 cup nonfat milk[...]

8 ounces tortellini 1 (10 1/2 ounce) can cream of mushroom soup 2/3 of can milk (10.5 oz) 8 ounces mozzarella cheese (2 cups grated) 3 tablespoons parmesan[...]