I usually drink a few cups of coffee in the AM and skip breakfast. I carry calorie dense foods (boiled eggs, nuts, dried meat, cliff bar) for snacks during the day. If I camp where I park, there's usually a cooler full of vittles and premade meals. Cold spike camps in the wilderness are a totally different story.
Pretty much the same here.
When I 'camp' in my SUV, rear seats removed/folded down, a twin mattress, sleeping bag, pillow laying there, all my gear, cooler, clothing, etc.beside me. When the alarm goes off, I step out to relieve myself and light the gas stove upon which the simple camping-style percolator sets, already prepped the night before with water and grounds. In the time that takes to make full strength coffee, I get dressed, packed up and I chew down a granola bar. I then go #2 at the trailhead restroom, pour myself a mug of joe and start walking in. I usually only take another granola bar, jerky, and/or some crackers & tuna in with me. A couple water bottles and I'm good for the day.
When I'm camped in the backcountry, it all is really just the same except I'm in a tent, no mattress, much less gear and no trailhead restroom. I never light a wood-fueled campfire when I'm hunting because I don't want the smoke on me, so I use a small propane stove to heat/cook everything and I keep it all extremely simple.
My brother and dad on the other hand, who come into Colorado from another state to elk hunt, they want bacon, sausage, eggs, toast, pancakes, syrup, breakfast burritos, you name it, for a big breakfast. Then they're packing in cheeseburgers, chips, burritos, etc. for lunch and want a big steak or casserole supper after we hike out at night. That means you'll be digging potty holes all throughout the day while your hiking around just to eliminate pounds of food from your bowels. You waste over an hour getting up and out too, but they are more in it for the vacation/experience of high-country big game hunting than I am. I'm in it to fill a tag with haste and put meat in the fridge. For me, it's a chore that I want completed as quickly, easily, and with as minimal accoutrements as possible. But don't get me wrong, it's a passion of mine and I love it to death. I'd be out there again right now if I hadn't filled my tag last month already.