I think it really depends on the individual. In my regular day to day life, i tend to eat a lot of the same foods or rather meals because they are a combo of nutritious, quick-easy to make, filling, and tasty in about that order of importance.
However, variety IS important from a purely nutritional standpoint and so i do try to mix it up. Some of my regular meals contain a variety of vegetables for that reason, like mixing broccoli, onions, peas, collard greens, etc into the same meal, and since this is always mixed with a little brown rice, quinoa or the like, with a little goat or sheep cheese, and/or occasionally a little nutritional yeast with extra virgin olive oil or the like, it does cover a pretty wide spectrum of nutrients.
For me, i usually primarily eat from a mental and/or intuitive level. Food to me is more of a fuel, and i can and have adjusted my tastes to pretty much anything if i know it's healthy for the body i use. For example, i've grown to actually like the taste of Garden of Life's Perfect Food (green mix powder). Many on amazon think it tastes horribly disgusting.
If i/this body (rather) didn't have to eat to survive, i probably wouldn't.
Other people approach food differently, some very sensually, with a lot of attachment to taste, texture, etc, etc. Some eat more out of emotions. Some need a lot of variety, constantly changing, others much less so. I also find that we as humans tend to go in phases or cycles too, wherein sometimes we like more variety for a little while, and then other times more consistency, etc.
So, i guess what i'm really saying is, you won't know until YOU try it out, since you are a unique individual.