Just eat the main dishes. Steak, chicken breast, fish and lasagna (with beef) sound good to me.
If the dish of the day is shit, go get a few hamburgers from the junk line. At your bodyweight, you NEED a hamburger!
Alternatively, muscle up your salad from the salad bar!
The last "salad" I had from an airport salad bar was about a pound of tuna, feta cheese cubes, more cheese cubes, some olives, dressing, hot sauce and a piece of a salad leaf.