When I make sloppy joes it's just sauteed onions and garlic, then add the ground beef and season with salt, pepper, chili powder, and maybe a little cayenne if you want it spicy. Then add ketchup until the texture looks right, put in a tablespoon or so of yellow mustard, and I like to add a splash of vinegar. Taste it and adjust spice/mustard/vinegar. I like to put diced onions and sliced pickles on my sloppy joes. Never served this to anyone that didn't love it even though some people will wag their finger at me for using ketchup.