Cook potato nuggets as directed on package.
Meanwhile, in 10-inch skillet, cook ground beef and garlic over medium-high heat for 5 to 7 minutes or until thoroughly cooked, stirring frequently. Drain. Add beans, milk and soup; mix well. Reduce heat to medium; cook 6 to 8 minutes or until beans are tender, stirring occasionally.
Add cheese; stir until melted. Top with cooked potato nuggets.