01 -  Preheat oven to 350°F and grease a standard 12-cup muffin tin or line with silicone muffin liners. 
 02 -  Cook the Italian sausage in a skillet over medium heat, breaking up pieces until browned, about 5 minutes. Add onion, garlic, and bell pepper; sauté until vegetables soften, approximately 3 minutes. 
 03 -  Stir in diced tomatoes, chopped spinach, dried Italian herbs, and crushed red pepper flakes. Simmer mixture for 3 minutes, then remove from heat and allow to cool slightly. 
 04 -  In a large mixing bowl, whisk together eggs, whole milk, salt, and black pepper until smoothly blended. 
 05 -  Add shredded mozzarella, grated Parmesan, chopped basil, and cooled sausage-vegetable mixture to egg blend. Stir until evenly incorporated. 
 06 -  Gently fold in broken lasagne noodle pieces. 
 07 -  Distribute mixture evenly among prepared muffin cups, filling each about three-quarters full. 
 08 -  Bake in preheated oven for 20 to 25 minutes, until muffins are puffed, golden, and a toothpick inserted in the center comes out clean. 
 09 -  Allow muffins to cool for 5 minutes, then run a knife around edges to release. Garnish with additional fresh basil before serving.