Tortellini in mushroom sauce without bouillon

1 (9 ounce) package cheese-filled tortellini 1 tablespoon oil 1 tablespoon butter 3 -5 garlic cloves , peeled and minced 1 cup half-and-half 1/2 cup chicken[...]

12 ounces tortellini 8 ounces roasted red peppers (2 whole peppers, roasted and inner removed) 1 1/2 cups half-and-half 2 tablespoons sour cream 1/2 teaspoon[...]

1 (9 ounce) package cheese tortellini 1 tablespoon butter or 1 tablespoon margarine 1 tablespoon canola oil 1 -2 garlic clove , minced 1 cup sweet pepper ,[...]

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[...]