Replying to Plan my diet

I fucking eat like shit, I eat fast food daily and junk food with very few fruit veggies protein or any of the good stuff, I need help eating right but ive never once in my life tried cuz Ive never been fat and usually pretty healthy and active but as I get older I'm starting to notice a shift and think my diet is a huge factor. So plan my diet! Im looking for meal suggestions tips or anything for bfast lunch and dinner and it has to be shit u can buy easily from a grocery store and prepare in under 60 mins.