Stir-fried Beef with Mustard Greens
3/4 lb boneless beef sirloin, partially frozen; 2 Tbls vegetable oil; 1/2 tsp mustard seeds; 1 lb mustard greens, washed, stems removed; 2 Tbls finely chopped green onion; 2 cloves garlic; 1 cup beef or chicken broth; 2 Tbls cornstarch; 2 Tbls soy sauce; 1 tsp sugar; 2 – 3 cups hot, cooked rice.
Thinly slice beef. In wok or large skillet, heat 1 Tbls oil over medium high heat. Add mustard seeds; cover and heat until seeds pop. Add greens and stir-fry until tender. Remove to bowl. Heat remaining oil in wok. Add beef, onion and garlic. Stir-fry until meat is well – browned – about 3 minutes. Remove to bowl with greens. In small bowl, with wire whisk, stir together broth, cornstarch, soy sauce and sugar. Add to wok; cook, stirring until thickened. Stir in beef mixture and greens; heat to boiling. Serve with rice. Try substituting marinated chicken for the beef or adding sliced ginger root into the meat, onion and garlic. I use the sauce ingredients (broth, cornstarch, soy sauce, and sugar) whenever I make a stir-fry, no matter what the ingredients.