It's a quick easy dinner and serving one more is no trouble.
As soon as I put it on the table, my girls began to eat eagerly. Eden just stared at them for a while. I was a picky eater, so I didn't worry about it. If Eden didn't eat, her mother could feed her when she got home. Then Eden said, "You eat onions and mushrooms?" in the most derisive voice I have ever heard from a child. My girls immediately stopped eating their pizza sandwiches. I thought it was a one-time thing. Again, nothing to worry about.
But, after that, whenever I served anything with mushrooms or onions, they either refused to eat it, or picked the onions and mushrooms out. My younger daughter is now 38 years old. She served turkey with stuffing for family dinner and announced that she had left the onions out of the turkey dressing because she doesn't like onions. There were also no mushrooms.
A lifetime of food avoidance from one casual remark by one dinner guest. That is something to think about.