Ingredients

5 ounces fresh chorizo1-1/3 cups crumbled Cotija or feta cheese2 tablespoons chopped fresh cilantro2 garlic cloves, minced1 teaspoon minced seeded jalapeno pepper2 pounds ground beef3/4 teaspoon coarsely ground pepper1/4 teaspoon salt6 hamburger buns, split1-1/2 cups tomatillo salsa (about 12 ounces), warmedOptional: Sliced red onions, heirloom tomatoes, hot pepper sauce and fresh cilantro leaves

Preparation

In a small skillet, cook chorizo over medium heat, crumbling meat, until cooked through, 4-6 minutes; crumble meat. Drain and cool slightly. Combine chorizo with cheese, cilantro, garlic and jalapeno.

Shape ground beef into twelve 1/4-in.-thick patties. Spread chorizo mixture over six patties to within 1/2 in. of edges; top with remaining patties, pinching edges to seal. Refrigerate 30 minutes.

Sprinkle burgers with pepper and salt; grill, covered, on a greased rack over medium direct heat 6-8 minutes per side, until a thermometer reads 160°. Remove from heat; tent with foil and let stand 4-5 minutes.

Meanwhile, grill buns until golden brown. Serve burgers on buns with salsa and toppings as desired.