The same few foods can fill a week
Rice, potato, banana, beans, peas, bread, egg, yogurt. A short list can cover breakfast, lunch, and dinner when the diet allows them.
Repeat on purpose
You do not need a new ingredient every day. You need foods you can repeat without dreading the cooking.
The same rice can be breakfast, a snack, and part of dinner. Repetition is how a toddler’s week stays calm.
Cross off what does not fit
Egg comes off the list when the diet is vegetarian or egg is an allergy. Yogurt comes off when milk is an allergy. Bread comes off when wheat is an allergy. Chicken was never required.
What remains is still a week. Fruit, beans, rice, and potato can carry a lot of meals.
One new food in that list
Keep the short list, and let one item be the food they are learning. The others are the yes.
The app can turn that one new food into the week. The shop can stay this short.
A sentence you can say
“We already know how to cook these.”