Nacho Casserole

INGREDIENTS

1 tbsp

extra-virgin olive oil

onion (chopped)

1 lb

98% lean ground beef

4 tbsp

all-purpose flour (divided)

2 tbsp

tomato paste

1 3/4 cups

chicken broth

15- ounce can tomato sauce

1 tbsp

chili powder

1 tsp

cumin

1/4 tsp

paprika

salt and freshly ground pepper

3 cups

cooked white rice

2 1/2 cups

shredded cheddar (divided)

1/2 cup

Shredded Monterey Jack

1/4 cup

sour cream

1 cup

crushed tortilla chips

2 tbsp

butter

1 cup

milk

chopped tomatoes (for serving)

avocado (sliced, for serving)

Hot sauce (for serving)

sliced green onions (for garnish)