Rice and Beef Burritos Packed With Avocados and Corn

Ingredients

• 250 g extra-lean ground beef
• 1 cup onion (minced)
• 1 tsp ancho chili powder
• 1/2 tsp ground cumin
• 1 540ml can black beans (rinsed well and drained)
• 1 1/2 cups salsa ((mild, medium or hot))
• 1 cup frozen corn kernels
• 3 cups cooked brown short or long grain rice
• 6 10-inch whole grain tortillas
• 3 cups romaine lettuce (chopped)
• 1 cup Monterey Jack cheese (shredded)
• 12 thin slices ripe avocado
• sprigs cilantro
• Lime wedges
• sour cream or plain yogurt