This is a recipe from Kraft Foods http://www.kraftfoods.com/kf/recipes/tomato-spinach-pasta-toss-104507.aspx
2 cups rotini or penne pasta, uncooked
1/2 lb hot or mild Italian sausage, casing removed
1 pkg (6 oz.) baby spinach leaves (7 cups)
1 can (14-1/2 oz.) Italian-style diced tomatoes, undrained
1 cup Shredded Mozzarella Cheese
2 Tbsp.Grated Parmesan Cheese
Cook pasta as directed on package.
Meanwhile, crumble meat into large deep skillet. Cook on medium-high heat 10 to 12 min. or until cooked through, stirring occasionally; drain. Add spinach and tomatoes; cook 2 min. or until spinach is wilted, stirring occasionally. Remove from heat; cover to keep warm.
Drain pasta. Add to skillet along with the cheeses; toss lightly.