We do a lot of tent camping. Things we do to make it easier...for one we have a plastic bin packed and ready to go. It has the cooking gear, laterns, bug spray, first aid stuff, emergency toilet paper, wipes,trash bags, a few ziplock bags, etc. It's all ready to go. We restock before putting it away. I used to have a packing list taped to the lid. It had each person's name and reminders like - clothes, swim suit, hat, sunglasses, flash light, etc. It helped me remember to pack appropriately for each person. And kept us from leaving without sunglasses. Now I think I have it down and I no longer use the list, but for a while, it was helpful! I have a HUGE bag that I store all the sleeping bags and pillows in. I bought pillows on sale. They became "camping pillows" and just stay with the gear. It makes our trips more "grab and go", than spending hours hunting down things and packing. We also carefully pack our tent when we leave. I hate this chore, but it makes set up so much easier. Our cheats are the air mattress (too old and fat to sleep on the ground any more. ;) ) , our powe inverter (you can plug things into it and it runs off the car outlet) and a battery powered fan...Texas gets HOT in the summer.
As for food. We often do fajitas. I can precook a lot of that before we leave and then just heat and eat. Hobo dinners are another fave. Sometimes I prep those ahead of time, sometimes we do it all on site. In fact, there are LOTS of foil packet meals out there. Do a google search and you may be surprised. Just depends on how we feel. And hot dogs are pretty easy. The kids like cooking those on sticks. We keep pretty busy when we camp. My kids and hubby kayak fish most of the day. So lunches are even more simple. We snack a lot. Jerky, nuts and fruit. Sometimes we do homemade lunchables. Bread always gets squished, so we don't really do a lot of sandwiches. We don't do side dishes really either. Lots of snack type foods. If it is cooler weather, we may go all out for breakfast and make some sort of breakfast burritos. Most of the time, Texas is too hot for starting a fire or lighting a grill first things. So we bring fruit, cereal bars, granola bars and the like for breakfast. I freeze pouch drinks and our waters to help keep the cooler ice from melting.
We always bring a book of fairy tales to read at night in the tent. Our kids are 6 and 9. It is kind of a tradition now. We don't read every night, but we do read it while we camp. We bring cards, uno, a ball and bubbles for entertainment during "down times". All electronics, except for the fish finder and walkie talkies on the kayaks and phones for emergencies are banned while camping. :)