Cheesy Vegetarian Brown Rice Casserole with Broccoli and Mushrooms (Video)

INGREDIENTS

1 tbsp

Mushroom base

12 oz

Mushrooms

Onion, large

1 can

Vegetable broth

Salt and fresh ground black pepper

4 tsp

Olive oil

1 cup

Cheddar, grated low-fat sharp

1/4 cup

Mozzarella, low-fat grated

1 cup

Reduced fat four cheese mexican blend

1 1/2 cups

Sour cream, reduced fat

4 cups

Chopped broccoli, stems and flowerets