Beefy Tacos

Ingredients

• 1 pound ground beef (95 percent lean)
• 1 yellow onion, finely chopped
• 4 cloves garlic, chopped
• 1 can (16 ounces) vegetarian refried beans
• 1 jar (16 ounces) salsa
• 1 cup shredded sharp cheddar
• 2 serrano chiles, seeded and finely chopped
• 12 small corn tortillas
• 2 heirloom tomatoes, chopped
• 2 cups shredded lettuce
• 1/3 cup lowfat sour cream (or nonfat plain Greek yogurt with a squirt of fresh lime juice
• 1/3 cup chopped fresh cilantro
• Hot sauce, to taste (optional)