2Spray a pan with cooking spray and turn the stove on high heat.
3Put the onion slices in the pan and cook until golden brown on each side.
4Add sea salt and black pepper to the lean ground beef.
5Massage the meat with the seasoning.
6Evenly distribute the seasoned meat onto three low-carb snack-size tortillas.
7Add mustard on top of the meat on each tortilla.
8Place the tortillas with the meat-side down on the pan with the leftover juices from the onions.
9Cook until the meat is brown and crispy, then flip them over.
10Turn the heat to low.
11Add one slice of 35-calorie Velveeta cheese on each taco.
12Cover the pan to melt the cheese.
13In a bowl, combine 40 grams of plain non-fat Greek yogurt, 24 grams of G Hugh sugar-free ketchup, 4 grams of white distilled vinegar, and 8 grams of no sugar added relish and mix.