Place the chicken thighs in a large food storage bag. Combine olive oil, lime juice, zest of 1 lime, garlic, jalapeño, onion and garlic powders, salt, and pepper in a bowl and whisk to combine. Add to the chicken and marinate for 20 minutes at room temperature or up to 8 hours refrigerated.
If refrigerated, allow to sit at room temperature for a few minutes before cooking.
Heat 2 tablespoons olive oil in a large skillet over medium heat until it starts to sizzle. Shake the marinade off the chicken thighs and place in the skillet, being careful not to over crowd (cook in batches if needed). Cook for 5 minutes or until browned. Flip and cook for another 5-7 minutes or until browned and the chicken has reached an internal temperature of 165 degrees. Discard marinade. Let rest a few minutes before serving with Cilantro Lime Cauliflower Rice.
Make the Cilantro Lime Cauliflower Rice:
Cook the cauliflower rice per the package instructions. Heat the oil and butter in a large skillet over medium heat until the butter has melted, and the oil starts to sizzle. Add the cooked cauliflower rice and cook for 2-3 minutes or until the cauliflower has dried out. Add the grated zest of 1 lime and the cilantro. Season to taste with salt and pepper.