Pat the chicken breast dry and season both sides evenly with smoked paprika, garlic powder, sea salt, and black pepper.
Heat the avocado oil in a large skillet over medium-high heat and sear the chicken for 5-6 minutes per side until golden and cooked through.
While the chicken cooks, combine the diced tomatoes, cucumber, red onion, cilantro, and lime juice in a small bowl to create the garden salsa.
Remove the chicken from the skillet and let it rest; in the same skillet, add the cauliflower rice and cooked quinoa, sautéing for 3 minutes until warmed and slightly toasted.
Slice the rested chicken into thin strips.
Assemble the bowl by placing the cauliflower and quinoa mixture at the bottom, then topping with the sliced chicken, fresh garden salsa, and sliced avocado.