How about cooking your ground beef with chili powder, cumin and maybe some garlic powder? Tastes a lot like taco meat. I also like to make ground beef patties with bleu cheese in the middle or maybe some feta cheese. Ground beef patties topped with sauteed mushrooms are also good. How about adding mushrooms and sour cream to ground beef with a few onions and some garlic for a stroganoff type dish?
Low carb snacks....hmmm...I like celery sticks stuffed with cream cheese, pork rinds with low carb dip, leftover meat, boiled eggs and pepperoni slices. Hope this helps!