Mini Spinach Tomato Egg White Breakfast Cups

Mini egg cups are convenient when you want a few savory bites rather than a large breakfast dish. This version uses egg whites with spinach and tomato, baked in a small muffin pan. The vegetables provide color and texture, while a light coating of oil helps the cups release. Egg whites can become rubbery if overcooked, so the small size calls for attention near the end of baking rather than leaving them in the oven until deeply browned. For a small batch of about six mini cups, gather one half cup of liquid egg whites, one quarter cup of cooked chopped spinach, one quarter cup of finely diced tomato, one teaspoon of olive oil for the pan, and a little black pepper. Use pasteurized carton egg whites or freshly separated whites handled appropriately. Check the carton instructions if using a packaged product. Measure the spinach after cooking and squeezing out excess water. Heat the oven to 350 degrees Fahrenheit. Brush six wells of a mini muffin pan with a thin coating of oil. Drain the diced tomato in a small strainer or blot it gently so loose juice does not collect in the egg mixture. Chop any long spinach strands more finely. Small pieces distribute more evenly in a mini cup and are easier to bite than a single large clump. Stir the egg whites with the vegetables and pepper until evenly combined. Divide the mixture among the prepared wells, leaving a little space at the top. The exact number depends on your pan's size; do not overfill a smaller well to force the stated yield. Place the pan on a level oven rack and bake until the centers are set, beginning to check around twelve minutes. Continue as necessary until the egg mixture reaches 160 degrees Fahrenheit. Let the cups rest briefly, then loosen the edges with a suitable flexible utensil and lift them out. Serve a few warm, or cool them promptly for later refrigeration. They will not have the rich yellow color of whole-egg muffins, and that is expected. A pale interior with visible spinach and tomato is appropriate; a wet center is not. Avoid using surface color alone to decide whether they are cooked. Egg whites contribute protein, and the vegetables add variety. This is a small snack or one component of breakfast, not a required complete meal. Pair the cups with bread, fruit, or another food if that better matches your appetite. No calorie or protein total is assumed without using the actual ingredients and the number of cups eaten. The lighter preparation comes from the ingredient choice and measured oil, not from a guaranteed dietary outcome. Keep leftovers refrigerated in a covered container and transport them chilled with a cold source. Reheat until hot throughout, stopping before they dry out. For a variation, use finely chopped cooked zucchini that has been drained well instead of spinach. The most useful preparation habit is removing excess vegetable water before mixing. That keeps the small cups cohesive and lets the egg whites set without an extended baking time.