We had 7am EMH during Spring Break. The really early AM EMH is golden. We accidentally slept in and didn't get there until 7:30am. The crowds were still really light, and we got a ton done by 10am. Definitely skip the TS meal to hit this one.
We just eat breakfast in the room or on the way. DS eats cereal, either brought from home or bought at the hotel general store, with milk. DH eats a bar. I eat almond butter from individual packets and sometimes fruit or hard boiled eggs bought there. I have bought or had yogurt delivered before too. Then, we usually eat an early lunch, 11am, and maybe even have a morning snack. I don't know how your family handles sweets at breakfast, but if we just have pastries, we crash really quickly. We try to get some protein in there if possible.