If you use the search option up above this post.. looks like a magnifying glass, and type in gastroparesis you will find many with this condition. Dietary tips are throughout those post. Every person is different. It is recommended to have a lower fiber diet. I find for me.. being I also have diverticulosis throughout my colon, which requires a high fiber diet.. that I have to hit a medium. I avoid veggies and fruits that are very fibrous. I will eat broccoli flowerets well cooked and avoid the stems that are fibrous. I love asparagus and eat it much like broccoli.. making sure I avoid the fibrous stem. Most veggies I just cook Southern Style.. cooked to death.. looks like baby food if smashed with a fork. Summer squash I peel, cut in half and scoop the seeds out with a spoon. I avoid stringy green beans, black-eyed peas field peas and greens like kale, lettuce, collard and mustard greens. For some reason I can eat the creamed spinach my husband cooks. I can eat Bush's canned baked beans, but no other brand.
I also have achalasia and Barrett's esophagus… swallowing problems and food feels like it gets stuck with plenty of chest pain. Only fruits I eat raw are very ripe bananas and satsumas (a type of tangerine.I cut the fruit in half and run knife around the edges and between the sections and scoop out the sections leaving the fibrous parts behind.) I eat canned fruit and I cook apple slices without the peal. I can sometimes eat homemade granola bars…. a few finely chopped roasted nuts, finely chopped dried fruits with local honey and brown sugar mixed with toasted oatmeal. Sometimes I eat a few roasted pecans or peanuts .. chewing well.
Only cracker I can eat is Ritz. Bread is hit and miss. So I eat very little bread. I eat very little white potatoes. Even mashed they are difficult to swallow. I do better with sweet potatoes, but not by much.
Meat… ground beef is my best bet. Chicken is most difficult for me. Sometimes I puree up some pouch tuna fish with a bit of mayo and eat with crackers. I have eaten so many eggs I cannot stand them anymore.
Mostly a diet is trial and error. What works for one may not work for another.
Best of luck,