Put the new food beside the familiar one
The new food gets a small place on the plate. The food they already eat stays easy to reach.

Offer, do not replace
You are offering, not replacing. Replacement is what makes a new food feel like a threat.
Rice in reach. A teaspoon of carrot at the side. They can eat one and ignore the other.
How small the new food is
A few bites, not a second meal. You can always add more of the familiar food.
If the new food is the only thing they can see, you have replaced the meal. Move the yes forward.
The app’s week
The app keeps one new food beside familiar food across seven dinners, and changes how it is cooked. This page does not list those days.
Tonight, beside is the whole idea.
A sentence you can say
“Your food is here. The new one is beside it.”