Tortellini Primavera

1 cup Sliced mushrooms
1/2 cup Chopped onion
1 clove Garlic, minced
2 tbsp Butter
1 package (10oz) frozen chopped spinach, thawed and well drained
1 Container (8oz) soft cream cheese
1 Medium tomato, chopped
1/4 cup Milk
1/4 cup (1oz) grated Parmesan Cheese
1 tsp Italian seasoning
1/4 tsp Salt
1/4 tsp Pepper
8-9 oz Fresh or frozen cheese-filled tortellini, cooked and drained

Cook and stir mushrooms, onion and garlic in butter 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