Preheat oven to 400°F.
Brown beef in large skillet on medium-high heat. Drain fat.
Stir in Seasoning Mix, salsa, frozen vegetables and water. Bring to boil.
Reduce heat to low; simmer 5 minutes, stirring occasionally.
Stir in beans and 1 cup of the cheese until well blended.
Spoon into greased 13x9-inch baking dish. Top with potato nuggets.
Bake 25 minutes or until potato nuggets are golden brown and crispy.
Sprinkle with remaining 1 cup cheese. Bake 5 minutes longer or until cheese is melted.
Serve with desired toppings.
