Step 1: Preheat the Oven: Start by preheating your oven to 350°F (175°C) to ensure even baking.
Step 2: Combine the Beans: In a large mixing bowl, combine the drained kidney beans and pinto beans.
Step 3: Add the Tomatoes: Pour in the can of petite diced tomatoes (do not drain).
Step 4: Mix in Pizza Sauce: Add one cup of pizza, marinara, or pasta sauce to the bean mixture.
Step 5: Season the Mixture: Sprinkle in one tablespoon of dried oregano and ½ teaspoon of freshly ground black pepper.
Step 6: Incorporate Mini Pepperoni: Fold half of the mini pepperoni into the mixture.
Step 7: Transfer to Baking Dish: Pour the bean mixture into a greased 9x13 inch baking dish.
Step 8: Top with Cheese and Pepperoni: Sprinkle two cups of shredded mozzarella cheese over the top and add remaining mini pepperoni.
Step 9: Bake: Place the baking dish in the preheated oven and bake for about 25-30 minutes.
Step 10: Garnish and Serve: Garnish with finely minced fresh parsley and serve warm.