If you want to feel good riding you need to fuel your body.
Breakfast: In camp, two cups of granola washed down with water or soy milk if I bought some the night before.
Second Breakfast: Ideally after riding 20 miles before 10AM. Pancakes!
Lunch: Peanut butter on whole grain bread and banana(s).
Dinner: Pasta with tomato based sauce and a 16 oz can of salmon (barely fits in 1.8L pot).
I stay away from Gatorade as it rots teeth and gets its calories from simple sugars. Instead I just drink water and get my "electrolytes" from the food I eat.