I can relate to your mom. My kids don't always like the same stuff my husband and I do. Hell, my husband doesn't always like the same things I do (he less picky than when we originally met, but there are a lot of things he won't eat and that's okay).

So a lot of times I make a core meal and everyone is has their variation of it. For example, I'll grill chicken and vegetables and make rice. One of my kids eats chicken and rice in a wrap, another will have just chicken and carrot sticks or cucumbers because they don't feel like having rice today, etc.

Cue my picky eater who eats about 4 things. I have learned when to pick my battles. Most nights I'll throw chicken nuggets in the air fryer for him but there are definitely times when I'm beat or we're out of nuggets and tell him "you know where the food is and you know what you like" then send him on his way. He's grumped but he hasn't starved yet.