I found bowls of oatmeal and broiled fish are very dry food and difficult to eat after radiation. I think part of your problem is you may be trying to eat foods that do not contain enough moisture. One would think that something like mashed potatoes would be easy, but I found them too dry unless I buried them in butter and gravy. While oatmeal was like glue, cream of wheat wasn't if I loaded it with honey, butter and milk.

Try eating hollondaise or a butter dill sauce if you eat fish, lots of applesauce with pork, rare lamb chops(leave the fat on) and mint jelly, rare steak, lots of cranberry with turkey and gravy. Find veggies with lots of moisture like peas or corn. Salads - pick lettuce which lots of water. I chose romaine with blue cheese. Anything with vinegar was a nono. Try pasta with an alfredo sauce. Then there are a million different kinds of soup and lots of good desserts like creme brulee, etc. I happen to like classic french food so I also ate things in sauces like veal in mushroom and cream sauce.

It also took forever to get a meal down, so take a book and chew and relax. You also need to figure out what you can and can't taste and this changes by the week. My sense of smell increased greatly after radiation so everything smelled marvelous, but it was a while before pork tasted good and at least 6 months before I could tell a pile of sugar from a pile of salt.

Hang in there and keep trying. Hope this helps.