Mexican Casserole

Bahan-bahan (6 porsi)

• 2 cups cooked brown rice (or quinoa or other grain of choice—about 2/3 cup uncooked)
• 1 tablespoon extra-virgin olive oil
• 1 yellow onion (chopped)
• 1 g reen bell pepper (chopped)
• 1 red bell pepper (chopped)
• 1 pound lean ground beef (or swap ground chicken or ground turkey)
• 2 tablespoons chili powder
• 1 1/2 teaspoons ground cumin
• 1/2 teaspoon kosher salt
• 1/2 teaspoon ground black pepper
• 1/4 teaspoon cayenne pepper
• 2 cloves minced garlic (about 2 teaspoons)
• 1 cup plain nonfat Greek yogurt
• 1 can reduced fat refried black beans (15 ounces)
• 3/4 cup freshly grated sharp cheddar cheese (divided)
• 3/4 cup freshly grated mozzarella cheese (divided)
• 1 10 -ounce tomatoes with green chiles (such as Rotel)
• Fresh cilantro (for serving)
• Chopped green onions (for serving)