Some ideas...
Hot dogs, brioche buns, onions, 'slaw of cabbage and carrot
Veg pasta with onions, tinned tomatoes, peppers, sweetcorn, mushrooms.
Mushroom soup, use gravy granules as stock, onion, mushrooms, milk,
Cheesy mash (triangles) with spaghetti hoops.
Minestrone soup with onion, carrot, tomatoes, sweetcorn, pasta
Baked potatoes, tuna, sweetcorn
Savoury tuna rolled in lettuce leaves
Grate parsnips, carrots, potatoes, slice onions. Drain, fry into a big rosti. Serve with salad.
Potato bake with onions gravy, parsnips. Serve with salad/slaw/tomatoes.