Preheat your oven to 400°F (200°C).
Cut the corn tortilla into small triangles, place them on a baking sheet, and bake for 5-7 minutes until golden and crispy.
While the chips bake, heat the avocado oil in a medium skillet over medium-high heat.
Add the ground beef, diced red onion, and diced bell pepper to the skillet, cooking until the beef is fully browned and vegetables are tender.
Drain any excess fat from the skillet, then stir in the black beans, chili powder, cumin, garlic powder, sea salt, and black pepper.
Arrange the homemade tortilla chips in the bottom of a small oven-safe dish or skillet.
Spread the beef and bean mixture evenly over the chips and sprinkle the shredded cheddar cheese on top.
Return the dish to the oven for 3-5 minutes, or until the cheese is melted and bubbly.
Garnish with a dollop of Greek yogurt and fresh chopped cilantro before serving.