@ksuromax - I completely understand the only one dinner thing. I love to cook but, at one point, when my mom lived with us, I had 5 people wanting different foods for different (non critical) reasons. Uh...no. Everyone eats what the cook eats now or they are free to forage for themselves. Lol!
That being said, different people thrive on different diets. I have friends who are vegetarian or vegan and it works well for them. I also have friends with Celiac's or IBS and they have to eat very specific diets. But, most of my friends eat anything and everything.
I feel best on a plant heavy version of the Paleo diet and avoid sugar, grains, legumes & processed foods like the plague. I eat veggies, fruit, seafood / fish, poultry and most meat. I don't have a hard stance on dairy but rarely desire/eat it.
Fish / seafood are my faves

Bacon and lamb are pure heaven.

Any veggie but evil okra is yumsters

Beef - not so much a fan.

Tofu? I just can't.

Rice is pure awful. I'm weird. I don't even like the look of it. <larvae>
Holidays and vacations are hard. I'll eat cookies and revive the sugar demon. Then I have to go cold turkey for a couple weeks to kill it again.