Return beef back into the skillet. Add the brown sugar, soy sauce, ginger, crushed red pepper, and cornstarch. Stir until sauce simmers and thickens; about 1 to 2 minutes. Add steamed vegetables and mix with beef.
TIPS: To make this super quick, use pre-minced garlic, ginger paste, and minute/instant rice. (I love Gourmet Garden Ginger Paste found in the refrigerated produce section.)
*Recipe altered from Lizzy Write