Double Decker Tacos

Ingredients (15)

• + 1 pound ground beef add to pantry
• + 1 (1 ounce) packet taco seasoning mix, divided add to pantry
• + 1 (16 ounce) can refried beans add to pantry
• + ⅔ cup water add to pantry
• + 12 prepared crisp taco shells add to pantry
• + 2 avocados add to pantry
• + 1 tablespoon sour cream add to pantry
• + 1 fresh lime, juiced add to pantry
• ✓ salt and black pepper to taste
• + salt and black pepper to taste add to pantry
• + 12 (7 inch) flour tortillas add to pantry
• + 2 cups shredded Cheddar cheese add to pantry
• + 1 cup shredded lettuce add to pantry
• ✓ 1 large tomato, chopped
• + ¼ red onion, chopped add to pantry