Healthier Burritos

Name: Healthier Burritos
Cuisine: Mexican, Latin American, American
Ingredients: 2 Tbsps chili powder; 1/2 tsp garlic powder; 1/2 tsp onion powder; 1/2 tsp crushed red pepper flakes; 1/2 tsp dried oregano; 1 tsp paprika; 3 tsps ground cumin; 2 tsps sea salt; 2 tsps ground black pepper; 1 Tbsp avocado oil; 1 large white onion (diced); 1 lb lean ground beef or bison; 3 garlic cloves (minced); 1-2 Tbsps homemade taco seasoning mix; 1 x 15 oz can black beans (drained and rinsed well); 2 large ripe tomatoes (chopped); 1/2 cup green onions (chopped); 6 large whole wheat tortillas of choice; 1 cup cooked brown rice; 1 cup cheddar cheese (shredded); 1 cup mashed avocado or guacamole; shredded lettuce (fresh cilantro, plain Greek yogurt)