Dice the onion into 1/4-inch pieces, dice the bell peppers, dice the tomatoes, and chop the fresh cilantro. Cook the bacon in a skillet over medium heat until crispy, about 5-7 minutes, then transfer to a paper towel-lined plate and chop once cooled. Make sure your coleslaw is well-drained to remove excess moisture, which will keep the nachos crispy. Have all ingredients prepped and ready before you start cooking the turkey, as the assembly process moves quickly. Preheat your oven to 350°F.

Heat the olive oil in a large skillet over medium heat. Add the diced onions and sauté for about 5 minutes until softened and fragrant. Increase heat to medium-high, add the ground turkey, and cook for 6-8 minutes, breaking it up with a spoon as it cooks, until browned and no longer pink. Drain off any excess fat in the pan. Stir in the BBQ sauce and chili powder, mixing well to coat all the turkey. Let simmer for 2-3 minutes to meld the flavors, then remove from heat.

Spread half of the tortilla chips evenly on a large baking sheet or in a 9x13 inch baking dish. Sprinkle half of the shredded cheddar cheese over the chips. Add the remaining tortilla chips on top, then layer with the remaining cheese. I find this double-layering approach ensures every chip gets melted cheese coverage and prevents the bottom layer from staying dry. Bake for 5 minutes until the cheese begins to melt.

Remove the pan from the oven and carefully top the melted cheese with the BBQ ground turkey mixture from Step 2, spreading it evenly across the nachos. Sprinkle the cooked bacon and diced bell peppers over the turkey. Return to the oven and bake for another 5 minutes until the cheese is fully melted and bubbly.

Remove the nachos from the oven and immediately top with the drained coleslaw, diced tomatoes, and fresh cilantro. Add these fresh elements right after baking so the warm nachos don't wilt them too much, keeping the slaw crisp and the cilantro bright. Serve immediately while the cheese is still melted and warm. I recommend serving with extra BBQ sauce on the side for those who want additional flavor.