Cook beef: Heat a medium skillet over medium-high heat then add beef, chili powder, cumin and paprika. Season with salt and pepper and cook until beef is no longer pink, about 6 minutes. Drain fat. Make cilantro-lime rice: In a medium bowl, toss together white rice, lime juice and cilantro using a fork. Set aside. Make quesadillas: Heat a large nonstick pan over medium-high heat. When the pan is hot, add a tortilla, about 2 minutes per side. Build questioner : Working on a cutting board or plate, top the center of one quesadilla with some rice, meat, nacho cheese and sour cream. Roll up into a burrito. Repeat with remaining ingredients. Reheat the nonstick pan over medium-high heat. When the pan is hot, add two questioner and cook until the outside quesadilla is golden and slightly crispy, 3 to 5 minutes per side. Serve immediately.