Tortellini Primavera

1 cup sliced mushrooms

1/2 cup chopped onion

1 clove garlic -- minced

2 tablespoons margarine

10 ounces spinach -- thawed and drained

8 ounces cream cheese

1 medium tomato -- chopped

1/4 cup milk

1/4 cup grated parmesan cheese

1 teaspoon italian seasoning

1/4 teaspoon salt

1/4 teaspoon pepper

9 ounces cheese tortellini -- cooked and drained

Cook and stir mushrooms, onion, and garlic in margarine in large skillet. Add remaining ingredients except tortellini; mix well. Cook until mixture just begins to boil, stirring occasionally. Stir in tortellini; cook until thoroughly heated.