In a skillet placed over a medium-high, brown the ground beef with the onion and the garlic together until the beef is cooked through.
2 lbs. ground beef, 2 clove garlic, 1 medium onion
Drain off a good amount of the rendered fat.
Place the beef in the slow cooker and add all the remaining ingredients.
1 bell pepper, 1½ cups mushrooms, 1 can tomato sauce, ½ cup ketchup, 2 tbsp. coconut aminos or homemade Worcestershire sauce, ½ tbsp. Dijon mustard, ½ tbsp. prepared mustard, 1 tbsp. chili powder, 1 tbsp. pure apple cider vinegar, Sea salt and freshly ground black pepper
Season to taste and stir until well combined.
Cover and cook on low for 4 to 6 hours.
Serve over a mushroom cap, roasted eggplant, homemade fries, or as desired.