My child will not eat my meals!!

my 1 year old boy, refuses to eat things i cook for dinner. Tonight, i made chicken with mashed potatoes and veggies. He would only eat the mashed potatoes so i had to heat up some chicken nuggets for him to eat. All he will ever eat is chicken nuggets, mac n cheese, hotdogs!! those are so unhealthy for him and i dont know what to do because i cannot have him eating that stuff everyday! any advice 🙏🏻