Toast your buns before topping them with sloppy Joe mix, otherwise, those buns will get soggy real quick.
It’s called a sloppy joe, so don’t cook so long and at too high a temperature that you over cook and dry out the sauce. If not you’ll end up with an adjective that don’t work as good as “sloppy” - clean joe, neat joe, fancy joe!
Use your imagination for bun selection or don’t! I do highly recommend a birch bun if you have easy access
For crockpot sloppy joes be sure to brown the meat first
Brown the meat on high heat for more texture. At high heat levels you get more of that crust!