Nacho Casserole - Master recipes

Ingredients

• 1 tbsp. extra-virgin olive oil -
• 1 onion, chopped -
• 1 lb. ground beef -
• 4 tbsp. all-purpose flour, divided -
• 2 tbsp. tomato paste -
• 1 3/4 c. chicken stock -
• 1 15-oz. can tomato sauce -
• 1 tbsp. chili powder -
• 1 tsp. cumin -
• 1/4 tsp. paprika -
• Kosher salt -
• Freshly ground black pepper -
• 3 c. cooked white rice -
• 2 1/2 c. shredded cheddar, divided -
• 1/2 c. Shredded Monterey Jack -
• 1/4 c. sour cream -
• 1 c. crushed tortilla chips -
• 2 tbsp. butter -
• 1 c. milk -
• 1/4 c. Thinly sliced green onions -
• Hot sauce, for serving -