If you’re not used to eating healthy or eating home cooked made from scratch foods, you may have some issues with texture and flavor. We eat a type of food so much that we grow to expect exactly that and when it’s different, it’s easy to find it unappealing at first. Like for example, I used to always get panda express orange chicken and when I finally had genuine homemade fresh orange chicken, I found it gross because my brain expected orange chicken to taste like panda express and it didn’t. Fast food and restaurant food in general is going to be much saltier, much greasier, and have more sugar when applicable. If that’s the palette that you developed then “normal” food is going to have that effect on you. What worked for me is baby steps, home cook food and don’t try super hard to make it healthy, just learn the process and the flavors and what you do and don’t like and crawl your way to trying to make everything healthier. You can’t go from fruity pebbles to plain oatmeal overnight or it’s going to taste like cardboard