I think the thing that would help you the most is using a food tracker. (I use the one here on OH). It will give you a very good idea of where your biggest areas of opportunity are. The sweet tea REALLY has to go. (It was my thing before surgery). Now I drink unsweet tea with Splenda.
Honestly, at this point I would be VERY careful about the fast food and the Tyson appitizer stuff. Tyson chicken nuggets, for example, have 220 calories in just 5 pieces. 110 of that is from fat. 15 g of carbs and 12g of protein.
A single serving of Kraft Mac N Cheese has 259 calories, 48g of carbohydrates (7 of which are sugar).
Your malabsorption of calories is going to go away soon. It's really important that you get your eating habits back in line now before that happens! I know how hard it is to eat well when you have kids. I raised four girls (and now have two young step children). It is a great opportunity to teach THEM about healthy eating, as well! My youngest daughter (about to turn 17) has learned SO much in the last year just because of some of the changes we made in our eating habits. She is a much healthier girl because of it. She USED to be an Oreo cookie fanatic, but now she would rather have a snack of a cheese stick and an apple. (A completely AFFORDABLE snack as well. We are really tight on money).
What about using a crock pot for convenience? Nothing is easier than throwing beans in a crockpot. Chicken thighs in the crockpot with some taco seasoning becomes this heavenly smelling/tasting easily shredded meat that works for tacos or burritos. Add some beans to those burritos and you get a GREAT protein boost. Craving pizza? Use a couple slices of lean ham as the crust. Put on your sauce, cheese and whatever toppings you want. (I use turkey pepperoni, garlic and sometimes black olives). Once it's baked, it becomes YUMMY!! High in protein and VERY low in carbs. My family prefers it this way now.
Slim Jim makes a beef jerky that is about $2.99 and has 22g of protein in it and only like 3g of fat. It's not too chewy or hard.
Turkey pepperoni can be microwaved for 30 seconds to become crispy and are WAY better than chips, but satisfy my craving for a salty snack. (I LOVE these!)
I am a really picky eater, too. I don't eat mayonaise, cheese (except rarely on pizza), salad dressing, cottage cheese, sour cream, seafood of any sort (fish or shellfish, due to allergies)..
I hope you are able to use some of our ideas. =] Good luck to you!