Some mornings leave little room for cooking, even when everyone is hungry before heading out the door. Baked oatmeal cups are a useful make-ahead option: they use familiar ingredients, freeze well, and can be warmed one at a time instead of requiring a full breakfast spread.
Mix a simple base
Mash two ripe bananas with eggs, milk, and a little vanilla, then stir in rolled oats, cinnamon, and baking powder. Divide the mixture among greased muffin cups, filling each about three-quarters full. Fold in blueberries, chopped apple, or a few chocolate chips if you want different flavors across the batch.
Bake and cool completely
Bake at 350°F until the centers feel set and a toothpick comes out without wet batter; the exact time depends on your pan and add-ins. Let the cups cool before removing them, since warm oats can be delicate and fall apart. If the edges stick, run a thin spatula around each cup rather than pulling them out by hand.
Freeze for quick mornings
Freeze the cooled cups in a sealed container, with parchment between layers if they tend to stick together. Reheat one from frozen in short microwave intervals until warm throughout, or thaw it in the refrigerator overnight and warm it in the morning. Serve with yogurt or fruit when there is time, and keep a few plain so breakfast can suit different appetites.