You could buy frozen foods and be a little healthy.
You could buy frozen veggies, the mixed blended ones. I think I've seen frozen baked boneless chicken before. I've seen frozen burgers, turkery burgers, meatballs. I've seen frozen lasagna and other pastas. I've seen those potatoes that are already made that you can put into the oven. Rice is easy to make.
You could buy those things and make your lunch for the whole week on Sundays. You could have Broccoli, brown rice and baked chicken, one day. Lasagna, garlic bread ( I've seen it in the frozen aisle too) and the normandy blend veggies the next day. Turkey burger the next day. You could eat the same thing for the whole week if you don't feel like heating up all of that different stuff.