Cooking for different dietary needs without cooking twice

This page covers planning and cooking, nothing else. A diagnosed allergy, coeliac disease, diabetes, or any other medical restriction belongs with the dietitian or doctor who knows that person, and the rules about cross-contamination and safe ingredients come from them. What follows assumes you already know the rule and want a week that works around it.

Keep the restriction out of the base

Households with a mixed table tend to fail in one of two directions. One cook makes two dinners every night and gives up by March. Or everybody eats the restricted version of everything, and a nine-year-old starts asking why the whole house went meatless because of their brother.

Between those sits a rule that holds for years: cook the base to the strictest need at the table, and let the additions go on top. The pan holds food nobody has to check. The chicken, the bread, the parmesan, the soy sauce all arrive at the plate, one person at a time. One dinner, one shopping list, and the person with the restriction eats the same meal as everyone else rather than a version of it.

That rule survives most restrictions you can name, because it moves the split from the cooking to the serving. What it costs you is the freedom to bake everything together in one dish, and you give that up seven times in the week below.

One real week, split at the plate

This week belongs to four people: two adults and two children. One adult eats no meat, one child eats gluten free, and one cook does the weeknights. Every base below is meat free and gluten free, so the additions are the only place anyone has to think.

Six of those nights are one pot plus one addition, and the addition cooks alongside rather than instead. Thursday is the exception and earns its place: gluten-free pasta cooked in the same water as wheat pasta is no longer gluten free, so that night costs a second pan and a second colander. One such night a week is a fair price. Three of them is a sign the shapes need rethinking.

Sunday looks like the hard one and is not. Roast dinner splits at the protein while the potatoes, vegetables and gravy stay shared, as long as the gravy thickens with cornflour rather than a flour roux. That one swap turns the most divided meal of the week into a single jug everyone pours from.

The week is a loop, and it shops as one list. If you want the method behind turning it into that list in one pass, it is in the grocery-list guide.

Shapes that split, and shapes that fight you

The dinner that adapts well has a late assembly step. Food you combine before it goes in the oven has already made its decision for everybody.

Read the bottom two rows as a budget rather than a ban. A lasagne split into two dishes is a good Saturday and a bad Tuesday, so it goes on the plan where the time exists. Planning from shapes rather than recipes is the same trick behind meal planning without recipes, and it does more work here than anywhere else.

The swaps that live on the list forever

Most of the effort in a mixed-diet week is a decision you already made months ago, made again in the shop. Write the parallel staples onto the standing list and they stop being decisions.

Six lines, bought once a month, and the week stops requiring a specialist shop. The freezer matters more than the cupboard here: bread and rolls go stale before one person gets through them, and a frozen roll defrosts in the time the soup takes to heat.

Move 1: Cook the base to the strictest rule at the table

Whatever goes in the pan should be food every person can eat, and the parts that only some people want go on afterwards. A tomato sauce with no meat in it feeds four people and takes two of them a step of chicken. A bolognese with the meat already in it feeds three and leaves the fourth waiting for toast.

Move 2: Split at the plate, not at the hob

Keep the divergence to one step that happens after the cooking is done. Sliced meat on a board, a bowl of grated cheese, a basket with two kinds of bread. Every split you push earlier into the cooking multiplies the pans, and pans are what makes a cook quit a system in week three.

Move 3: Buy the parallel staples on a standing list

The swaps repeat every week, so they belong on the shopping list as fixtures rather than decisions. Tamari, cornflour, gluten-free pasta, frozen rolls, a tin of lentils. Six lines that never come off, checked once a month rather than debated in an aisle with a trolley in the way.

Move 4: Write the split next to the meal on the plan

A plan that says Thursday: pasta leaves the adaptation in one person's head. Write Thursday: ragu, gluten-free pasta in the small pan and whichever adult gets home first can cook it, grandparent included. The plan is the handover, which is the whole argument for sharing it with your partner instead of keeping it in your phone notes.

Move 5: Let the restricted eater choose two nights

Hand two dinners a week to the person the restriction belongs to and cook what they pick. A teenager who has spent four years reading labels in a supermarket has opinions worth hearing, and a nine-year-old who chose Tuesday stops fighting Tuesday. Choosing beats being consulted, and it is the same reason planning as a family beats one parent planning for everyone.

Where FamilyPlate fits

A mixed-diet week fails at the handover. The cook knows that Saturday curry gets chicken on the side and Wednesday needs the frozen rolls out at six, and nobody else in the house does. FamilyPlate keeps the meal library, the weekly dinner plan, and the grocery list in one shared household, so the split lives on the meal rather than in one head.

Save each dinner once with its addition written in, drop it onto the week, and everyone sees the same plan on their own phone. The grocery list rebuilds itself from the week, so the gluten-free pasta and the tamari come along without anybody remembering them. The library, the shared weekly plan, and the self-building grocery list are free on iPhone (iOS 17+); generate-week and the other AI features are Pro, $3.99 a month or $39.99 a year after a 7-day free trial.