Cook the Italian sausage, onion and bell pepper in a large skillet over medium high heat until sausage is cooked through completely and vegetables have started to soften. Drain grease, if necessary.
Add the mini pepperonis and Italian seasoning and cook for another minute or two.
Stir in the spaghetti sauce and allow to simmer for several minutes.
Spread the meat mixture into the bottom of a 9x13 inch casserole dish, then sprinkle the shredded mozzarella evenly over the top.
In a medium sized bowl, whisk together the flour, eggs, milk, vegetable oil and salt, then pour evenly over the top of the cheese.
Bake at 400°F for 25 to 30 minutes, until dish is bubbly and the crust has puffed up and started to brown.
Allow to rest for several minutes before serving.
Notes
Calories are automatically generated. For best results calculate based on your exact ingredients.