1. Preheat oven to 350°F 2. Lightly grease a 13 x 9 inch baking pan and set aside. 3. Bring a large pot of lightly salted water to a boil and cook noodles until al dente, according to package directions. 4. While water is coming to a boil, in a small bowl, blend the ricotta, spinach, basil, oregano, salt, pepper and egg. 5. Spray a large skillet with cooking spray or use a tsp or so of oil and heat over medium heat. 6. Saute onion, bell pepper, and garlic until tender. 7. Add red pepper flakes if using and cook for 1 minute. 8. Stir in beans, refried beans, and tomato sauce and cook until heated through. 9. Spread about 1/4 cup of sauce on bottom of baking dish and top with three lasagna noodles. Layer ricotta mixture, sauce and mozzarella cheese; repeat two more times, ending with cheese. Top with parmesan cheese. 10. Bake 45 minutes. Let stand 10 minutes before serving. ---------------------------------------------------------------------------
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