My sis was just told by her doctor that she has an "intolerance" to several foods. She is supposed to cut these out of diet: ALL grains (gluten) including rice & corn, chicken, tomatoes, potatoes (said these contained gluten

), peaches, pears, and all berries. She doesn't want to eat too much red meat and doesn't really like fish. What is she supposed to eat? Anybody have any good recipes I can pass on? Does anybody have any suggestions for what she can eat on the go (fast food type food)? She is looking for variety and budget friendly options.
Potatoes do NOT contain gluten so I don't know where she got that information from. Potatoes are a staple for a lot of people on a gluten free diet....I know they are for me!
I am allergic to: peanuts, tree nuts, eggs, shellfish, soy, dairy, wheat, oats, coconut, sesame, sunflower seeds, broccoli, honey, ginger, melon, bananas, cucumbers, celery, raw fruits (except grapes), raw vegetables. We think I am also allergic to chicken and maybe turkey (waiting for test results) and I have to limit my fish intake.
Now, I'm assuming that since she is classifying these as "sensitivities" that cross contamination isn't a concern? I know for me, cross contamination is a huge concern so that greatly limits things as well. And honestly, she might have to figure out how to like fish....she's going to have to figure out how to adjust. It's not easy but I have had to learn to eat things I might not have chosen to eat before or else I would not eat anything.
I eat:
Beef
Pork
Lamb
Fish
I can eat most veggies as long as they are cooked. So I like sautéed veggies with almost every meal. She can still eat salads and raw fruit ( apples, grapes, oranges, cherries, etc) for a quick snack.
She can figure out how to bake with nut flours. That's something I don't know about because I'm allergic to all nuts but I know almond and coconut flours are very common to bake with.
She can make turkey meatballs or regular meatballs by browning them in a pan and baking them instead of making them with sauce.
She can make the insides of beef fajitas with peppers, onions and mushrooms with some guacamole and sour cream
Burgers (turkey, beef, or veggie) wrapped in lettuce
Antipasto salads (cheeses, meats, veggies)
I also like broth based soups. I like turkey soup with veggies, Italian wedding soup, Sausage and kale soup
She can make things like artichoke and spinach dip or hummus for snacks.
Pork chops are very common in my house. You can make them a variety of ways.
Honestly, there is nothing I can eat that would be considered fast food. But I also can't eat out at any restaurants (except in WDW ). I make my own food to freeze and that is my convenience food. I just grab it out of the freezer, microwave, and eat.
She should either look at some recipe websites (I use allrecipes.com) or look at some cookbooks to see if she can get some ideas. When I choose recipes, I don't just choose recipes that are completely safe. I also choose recipes that I can make adjustments to or lave something out to make it safe.