Heat the oven to 425°F
While the oven is heating, spray 24 mini muffin-pan cups with cooking spray
Heat the uncooked elbows and soup in a 2-quart saucepan over medium-high heat to a boil
Reduce the heat to medium
Cook, uncovered, for 7 minutes or until the elbows are tender and the liquid is absorbed, stirring occasionally
Remove the saucepan from the heat
Stir in the cheese, milk and panko
Divide the soup mixture among the mini muffin-pan cups
Press the mixture down gently with the back of a spoon
Bake for 10 minutes or until the tops are golden brown
Let cool in the pan on a wire rack for 5 minutes
Remove the bites from the pan and serve warm
