How to lose weight when you can’t cook

I’ve been having a lot of trouble losing weight and I think the main reason is because i have trouble making healthy dinners. I’m fine when it comes to breakfast and lunch but dinners are what ruin it for me. I can’t make crazy healthy meals so I resort to just picking up food on the way home from work and most of the time, it isn’t anything healthy. Any advice on some easy/healthy dinner ideas that I can make so I can stop getting takeout?