Just about any combination of: coffee (black), eggs (fried, scrambled, in an omelette, hard or soft-boiled), bananas, berries, oranges, melons, cereal with milk, greek yogurt, honey, chia seeds, granola, oatmeal, toast, butter, ham, bacon, granola bars, tortillas, potatoes, tomatoes, onions and peppers. Most often in the 375 to 500 calorie range, a bit more on weekends.
When I have the time, a favorite is a nice breakfast burrito with a sweet potato hash (sweet potatoes, bell peppers, onions, tomatoes) plus a scrambled egg and some diced ham. I'll also sometimes skip the tortilla and have it in a bowl.