Heat a large non-stick skillet over medium high heat, then add the beef, peppers, onions, and garlic. Brown the beef, breaking it into small chunks, until it's cooked through. If there's any visible liquid in the pan, drain it in a colander and then return the beef to the pan.
Add the tomato sauce, ketchup, brown sugar substitute, Worcestershire sauce, and vinegar and stir until combined. Once the mixture begins bubbling, turn the heat down to low and simmer for 10 minutes, until the onions and peppers are soft. Serve on chaffle buns.
Macros per serving: 307 calories, 6 grams net carbs, 28 grams protein, 17 grams fat
For the Chaffle Buns
Whisk all ingredients together in a ramekin or small bowl until smooth. Pour half the mixture onto a preheated Dash mini-waffle iron, and spread it around until it covers the entire surface. Close the Dash and cook for 3-5 minutes, until golden brown. Remove and repeat with the remaining mixture.
Macros per serving (2 chaffles): 215 calories, 1 gram net carbs, 8 grams protein, 21 grams fat