Sloppy Joes

grapeseed oil

medium onion, chopped finely

green bell pepper, ribs and seeds removed, chopped finely

celery stalk, chopped finely

garlic cloves, grated on a microplane

to 1 1/3 pounds organic ground beef

tomato sauce

ketchup (I used my slow cooker ketchup .)

coconut aminos

kosher or sea salt and freshly ground black pepper,

gluten-free hamburger buns (I used Local Oven .)