Aaron Sanchez Cooks, 2

Chef Aaron Sanchez joins Martha to prepare duck with ancho chile-dulce de leche glaze. Part 2.

Sauteed Mustard Greens

Heat oil in a large skillet over medium-high heat. Add onions and jalapeno. Cook until onion is translucent, about 3 minutes. Add tomatoes and cook 2 minutes more. Add mustard greens and cook until wilted and tender, about 5 minutes.
Drizzle vegetables with lemon juice; season with salt and pepper. Serve immediately.