Heat the olive oil in a large skillet over medium-high heat.
Add the ground beef, breaking it up with a spatula until browned and cooked through.
Stir in the chili powder, ground cumin, garlic powder, sea salt, and black pepper.
Add the diced bell peppers and red onions to the skillet, sautéing for 3-4 minutes until tender-crisp.
In a separate small pan or microwave-safe bowl, lightly steam the cauliflower rice until tender.
Assemble the bowl by placing the cauliflower rice at the base.
Top with the seasoned beef and vegetable mixture.
Finish with sliced avocado, a dollop of salsa, fresh cilantro, and a squeeze of lime juice.