Crumble sausage and ground beef in a large nonstick skillet and cook over medium-high heat until meat is no longer pink, stirring and breaking up meat into small pieces.
Add onion and garlic and continue cooking, stirring frequently, until onion is soft.
Stir in tomato sauce, tomato paste, red wine, 1/2 cup water, and seasonings (rosemary through savory). Bring to a boil; immediately reduce to low and simmer, uncovered, for about 30 minutes. Season to taste with salt and pepper.
While Bolognese sauce is simmering, cook the pasta according to package directions. Drain.
In a medium bowl, mix together the spinach and sour cream.
Mix cooked pasta with Bolognese sauce. Spread half of the mixture over the bottom of a 2 1/2 to 3 quart casserole dish. Dot the top with half of the spinach-sour cream mixture and spread to make an even layer. Sprinkle with half of the cheese.
Repeat the layers and top with the remaining cheese. Bake, uncovered, for 40 to 50 minutes or until heated through and lightly browned on top.
Make ahead: Can be prepared but not baked up to 24 hours in advance, covered and refrigerated. Bring to room temperature before baking.