I figured out that, on average, 17 of the 21 of the meals I eat in a week are cooked by me, and those are paleo. The other 4 meals are cooked for me by others, and when it is a friend cooking I figure they work hard enough to make gluten-free meals for me that asking for paleo would be too much. So I don't. Plus, I don't mind eating grains in 20% of my meals -- as an endurance athlete (endurance in the sense that most of my workouts are between 1 1/2 to 2 hours long), that's probably the safest way to go.
I've had some pretty boring meals, but some really great ones too. I made a meat-only chili (just tomatoes, onion, red pepper, ground bison, chili, cumin, and ground red pepper) this weekend and recently ate it over "cauliflower rice," which is minced cauliflower sauted with onion. It was great and filling. And surprisingly, I'm not as hungry as I used to be. I think carbohydrates make me crave more carbohydrates. I'm sure there's some science to it.
In case you're interested in learning more about eating this way, here are a few links I've found really helpful: