You are tired and dinner is late
Late and tired is a night for a food they already eat. Toast, rice, banana, yogurt, or eggs, if those fit.
Skip the new food
Skip the new food. A boring win is better than a new food served in a hurry.
The familiar food, a drink that fits, and bed. That is a complete late night.
Only foods that fit
Yogurt stays off when milk is an allergy. Egg stays off when the diet is vegetarian or egg is an allergy. Bread and oats stay off when wheat is an allergy.
Whatever remains that they already accept is the right dinner. You do not need all of the examples.
Tomorrow
The new food can return tomorrow, earlier, in a small piece. A late night does not set the menu for the week.
If late dinners are every night and meals are distressed, talk to your child’s doctor. Tired is a reason to simplify, not to push.
A sentence you can say
“Late night. We’re having the food you like.”