Breakfast, lunch & dinner for me are all interchangeable so if I've got enough food prepped I just need to piece together a meal from what I've prepared. I do a large batch cook session each weekend - uslaly maybe 4 types of protein (one of these generally being a whole chicken), 3 veg dishes (one based around root veg, one based around greens and the other maybe a blended veg soup), and make sure I'm stocked up on salad veg, home made mayo, eggs, avocados, olives & tinned fish.
For me a weekly cook up is key, otherwise I'd be living on salads.....
It really does get easier though - right now you're still getting to used to what you can & can't eat, reading labels, forseeing stumbling blocks etc - soon it will all be second nature, honest!!