Cheesy Rigatoni Pepper Bake

Name: Cheesy Rigatoni Pepper Bake
Ingredients: Kosher salt and freshly ground black pepper; 1 pound rigatoni; 2 tablespoons olive oil; 4 cloves garlic, minced; 1 onion, finely diced; Two 28-ounce cans diced tomatoes; One 6-ounce can tomato paste; Two 8-ounce balls fresh mozzarella, cut into large cubes; 9 tablespoons grated Parmesan; One 1-pound bag mini sweet peppers, stemmed and halved; Peppy Salad, recipe follows; One 5-ounce bag baby spring lettuce leaves; 1 cup halved pepperoncini; 1 cup halved cherry tomatoes; 1 red onion, sliced; 1 mini red pepper, thinly sliced; 3 tablespoons olive oil; Juice of 1 lemon