Vegetarian Stuffed Pepper Skillet

Name: Vegetarian Stuffed Pepper Skillet
Ingredients: 2 medium red, orange, or yellow bell peppers (about 1 pound total); 1 small yellow onion; 4 cloves garlic; 1 tablespoon olive oil; 2 1/2 teaspoons kosher salt, divided; 2 (about 15-ounce) cans black or pinto beans, or 1 of each; 1 small bunch fresh cilantro; 4 ounces shredded Monterey Jack, pepper jack, or Mexican blend cheese; 1 tablespoon chili powder; 1 tablespoon ground cumin; 2 tablespoons tomato paste; 1 (14.5-ounce) can diced fire-roasted tomatoes; 1/2 cup water; 1 cup cooked brown rice; Freshly ground black pepper; Serving options : tortilla chips, lime wedges, sour cream, and/or diced avocado