Ground Lamb Tacos, Arabes Style - Rick Bayless

Ingredients

• 3/4 cup Greek yogurt
• 1 to 2 tablespoons Mexican hot sauce (like Tamazula or Valentina)
• 1 pound ground lamb
• About 1/4 teaspoon each ground coriander, cinnamon (preferably Mexican canela), black pepper and cumin
• 2 tablespoons vegetable or olive oil
• 1 medium white onion, sliced 1/4-inch thick, plus a little chopped for garnish
• Salt
• 12 ounces shredded melting cheese, like Colby, mild cheddar or Monterey Jack
• 12 warm corn tortillas
• A small handful of chopped cilantro, for garnish