Heat the avocado oil in a large skillet or pan over medium-high heat and sauté the ground beef for 5-7 minutes, seasoning it with the taco seasoning.
Add the diced tomatoes, heavy cream, and cheddar cheese, then bring to a simmer over medium-low heat for about 5-7 minutes.
Add the broth, reduce the heat to low, and cook for 10 minutes. Season to taste with salt and pepper.
Serve hot, optionally topped with avocado slices, jalapenos, lime wedges, and chopped cilantro.