01 - Preheat oven to 425°F. Toss fries with olive oil, smoked paprika, garlic powder, onion powder, chili powder, and salt until evenly coated. Spread in a single layer on a large baking sheet.
02 - Bake fries for 25-30 minutes, flipping halfway through cooking, until golden brown and crispy. Remove from oven and set aside.
03 - While fries bake, heat a skillet over medium heat. Add ground beef and cook for 5-6 minutes, breaking up with a spatula, until browned. Drain excess fat if needed.
04 - Add chopped onion and minced garlic to the skillet. Sauté for 2-3 minutes until softened and fragrant.
05 - Stir in cumin, chili powder, smoked paprika, salt, black pepper, tomato paste, and water. Simmer for 3-4 minutes until mixture thickens. Remove from heat.
06 - In a saucepan over medium heat, melt butter. Whisk in flour and cook for 1 minute, stirring constantly to form a roux.
07 - Slowly whisk in whole milk until smooth. Bring to a simmer and cook for 2-3 minutes until slightly thickened, stirring frequently.
08 - Reduce heat to low. Add shredded cheddar and Monterey Jack cheeses a handful at a time, stirring until completely melted and smooth. Stir in cayenne pepper and salt. Keep warm.
09 - Arrange hot, crispy fries on a large serving platter. Spoon seasoned beef evenly over the fries. Drizzle generously with warm queso sauce.
10 - Top with diced tomatoes, sliced jalapeños, chopped green onions, sour cream, and fresh cilantro. Serve immediately while hot.