Baked Macaroni, Cheese & Spinach

1 pound elbow macaroni
15 oz. low fat ricotta cheese
1 3/4 cups skim milk
1/2 cup egg substitute
2 teaspoons brown mustard
1 −2 teaspoons Tabasco sauce
1/2 teaspoon salt
1/4 teaspoon ground pepper
2 cups shredded low fat cheddar cheese
2 cups torn fresh spinach leaves
1/4 cup grated Parmesan cheese
1/4 cup fine bread crumbs
1 teaspoon paprika