Ingredients

1 30-ounce jar spaghetti sauce
1 16-ounce package rotini, cooked and drained
1 1/2 cups sour cream
1 10-ounce package frozen chopped spinach, thawed and drained
1/2 cup (2 ounces) grated Parmesan cheese

Directions

Heat oven to 375 degrees. Mix all ingredients. Spoon into 13-by-9-inch baking dish. Bake 25 minutes.