1. In a Dutch oven, bring first five ingredients to a boil. Reduce heat; simmer, uncovered, for 20 minutes, stirring often.
2. In a large skillet, cook sausage over medium heat until no longer pink; drain. Stir in raisins and Italian seasoning; add to sauce. In the same skillet, saute mushrooms and onion until moisture has evaporated. Stir into sauce. In a large bowl, combine the eggs, ricotta, spinach and grated Parmesan; set aside.
3. In each of two greased 13-in. x 9-in. baking dishes, layer 1-1/3 cups sauce, half of a package of ravioli, 1-1/3 cups sauce, 1/4 cup shredded Parmesan, six half slices of provolone, 1 cup Monterey Jack and 2-1/2 cups spinach mixture.
4. Top each with six half slices of provolone, 1 cup Monterey Jack, 1-1/3 cups sauce, remaining ravioli and sauce, 1/4 cup shredded Parmesan, six half slices of provolone, sliced tomatoes and remaining Monterey Jack (dishes will be full).
5. Cover and bake at 375° for 45 minutes. Uncover; bake 10-15 minutes longer or until bubbly. Let stand 15 minutes before serving.