Brown ground beef in a 10 in skillet; drain. Stir in 1/2 cup of milk, the hot water, and rice, sauce, and sour cream topping.
Heat to boiling, stirring occasionally.
Reduce heat; cover and simmer about 10 minutes, stirring occasionally, until rice is tender (sauce will thicken as it stands).
Meanwhile, stir 3 tablespoons milk and cheese sauce topping mix inspace a bowl for 30 seconds and set aside.
Remove from heat. Pour topping ** over beef mixture. (If desired, fill warm tortillas or taco shells with beef mixture).
Submitted by: Brooke Cox