I want to cook a decent meal for my best friend but her doctor has her on a food allergy diet. She can’t eat dairy, eggs, soy, nuts, gluten or wheat😕.

steak and potatoes. use olive oil as a fat and sauteed mushrooms and onions, also in olive oil. I have been on a similar diet, its difficult

Some ideas:


pulled pork (which can be used for lettuce wraps or street tacos with corn tortillas or a hash)
braised short ribs
chili verde
roasted salmon like this one: https://www.epicurious.com/recipes/food/views/slow-roasted-salmon-with-fennel-citrus-and-chiles-51210470
Thai curries (just read the curry paste ingredients carefully)

Some of these can be made ahead and simply reheated or assembled right before eating. pair with roasted vegetables, rice, or a salad.

You could do a dairy free shrimp and grits, same for polenta with mushrooms, jambalaya, paella, Vietnamese Bun (skipping the peanuts of course).

I have 2 good friends with Celiac disease. We've cooked a simple roast chicken (tip: call the customer service line on your spice jars to double check as some do have gluten as a filler) with a zucchini and sweet potato hash, and have also done chicken saltimbocca - thin palliards wrapped with prosciutto and a sage leaf - with a side of cannellini, radish and olive salad (I do this one https://www.bonappetit.com/recipe/white-bean-and-radish-salad with green olives). For a non chicken option I have made a chipotle rubbed pork tenderloin with avocado and strawberry "salsa" with rice, a recipe I think I originally got from Cooking Light magazine.

Pick a protein and then pair a vegetable as a side. Many paleo and keto recipes will work as well.

soups.

Does she get a food plan from the doctor? This could help in planning.

Red Beans and Rice would be another good option: http://www.thebittenword.com/thebittenword/2010/02/cajun-red-beans-and-rice.html

Ideas: Roast Chicken with potatoes http://www.geniuskitchen.com/recipe/crisp-skin-high-roast-butterflied-chicken-with-potatoes-213865 and kale https://food52.com/recipes/47164-suzanne-goin-s-slow-cooked-cavolo-nero-a-k-a-tuscan-kale

Steak & potatoes.

Make a simple roast chicken and her fave vegetable.

make a feijoada, black beans with meats and rice