Chicken Tostadas

Bahan-bahan (4 porsi)

• 4 (6-inch) corn tortillas
• 3 tsp . olive oil
• 1 cup refried beans, canned or homemade (see recipe below)
• 1 small red onion, diced
• 1/2 tsp . chili powder
• 2 cups shredded (cooked) Rotisserie chicken
• juice from 1 lime
• grated cheddar (or Monterrey Jack) cheese
• shredded lettuce
• tomato (seeded and diced)
• avocado (halved, pitted, peeled, and diced small)
• fresh cilantro (stems removed and chopped)