I have trouble preparing meals, so is it okay to eat the exact same thing every day?

Variety is key to get a broad spectrum of nutrients.

If you are sick of cooking and preparing meals, maybe it is a mindset issue that you need to address. It seems people these days expect it all to be easy, a nice little convenient walk in the park. Whatever happened to sucking it up and pushing it a little hard and sacrificing a bit to earn the reward? I guess that's why the lottery is so popular even though a large number of people who win end up losing all of their winnings ... people don't want to earn it, they just want it to magically fall in their lap.

I see your point, and I understand it. I can relate. I used to be that way, too. After 4 years of coaching people, the ones who are looking for the easy way (i.e. same foods day in and out) are the ones who struggle the most. The reason is because they haven't embraced a healthy lifestyle .. instead, they've created a compromise and diet mentality that forces them to take action without belief, so they are struggling to maintain instead of it being an easy side-effect of belief. I know this seems like splitting hairs but really if you are pursuing the easy way, it's only going to seem hard until you are ready to take on the challenge.