Tostadas de Tinga – Choose Homemade

Ingredients

• 1 (7 oz) can chipotle peppers in adobo sauce
• 1 (14.5 oz) can no-salt-added diced tomatoes
• 1 lime, juiced
• 1 1/2 lbs boneless, skinless chicken breasts
• 1 large yellow onion, thinly sliced
• 3 cloves garlic, minced
• 16 tostada shells
• 1 (8 oz) bag shredded lettuce
• 1/4 cup minced fresh cilantro
• 1/2 cup of plain non-fat Greek yogurt
• 2 avocados, sliced