Looking to build strength? Sommat like this:
-3 or 4 scrambed eggs on one slice of toast
-chicken wrap; chicken breast, lettuce, pepper, bit of light mayonnaise, wrapped up in one handy eatable wrapper.
-2 scoops of whey with 60g of oats and skimmed milk (or water)
-chicken breast with sweet potato fries (farm foods do them frozen by the bag for a good price) or buy fresh sweet potatoes and have them either baked or mashed. Add a side salad with avacado.
There's a staple for you. Add in some healthy snacks around that; Protein bars, tinned mackerel, shakes, tuna, bananas.
Get MyFitnessPal and record your calories. One of the most important things you can do. It's a pain in the ass for a few days, but once you realise what calories and protein you're getting, you won't need to rely on it as much.