Spaghetti bolognese, Chilli (very mild), Fish fingers, Chicken kievs , ,Fish pie, Mild curry, Beef casserole, Sausages and mash ,Burgers, Pizza , Noodles, Veggie fried rice, Pesto pasta with chicken, Roast dinners, Picnic dinners (crackers, veg sticks, cheese cubes, hummus, fruit), Chicken fajitas (again, very mild - practically just a chicken wrap with some cheese and onions added)
Veggies: corn cobs, peas, broccoli,carrots, green beans, cucumber, sweet potato, would eat cooked onions all day if he could.
Good luck OP, hope you find some inspiration somewhere on this thread! My cousins son is on the spectrum and she really struggles to get him to eat anything that isn't beige.