3 slow cooker baked mushroom Recipes

whole canned tomatoes, olive oil, garlic cloves, chopped, kosher salt and black pepper, rigatoni pasta, red onion, sliced, mixed mushrooms, trimmed and sliced (such as cremini, button, and shiitake), frozen spinach, thawed and squeezed of excess liquid, ricotta cheese, mozzarella cheese, grated, grated parmesan cheese , for serving

lean ground beef, onion, chopped (about 1 small onion), garlic cloves, minced, kidney beans, drained and rinsed, diced tomatoes, undrained, baked beans in tomato sauce, undrained, no-salt-added tomato sauce, canned mushroom slices, drained (optional), chili powder, cumin, cayenne pepper