Ingredients
Method
- Blanch green beans in salted boiling water for 4 minutes, then shock in ice water, drain, and pat dry. Preheat oven to 375°F.
- Melt butter over medium heat. Sauté mushrooms until browned, about 5 minutes. Stir in 3 tbsp gluten-free flour and cook 1 minute. Whisk in milk, broth, salt, pepper, and garlic powder. Simmer 4 minutes until thick.
- Toss sliced onion with ⅓ cup gluten-free flour and ½ tsp salt. Fry in 1 inch of hot oil in batches until golden and crisp, about 2 to 3 minutes. Drain on paper towels.
- Fold green beans into the sauce and transfer to an 8x8-inch dish. Top with crispy onions and bake 25 minutes until bubbly.
- Let the casserole rest a few minutes, then serve hot.
Notes
If you’re short on time, skip the homemade onions and top the casserole with 1 ½ cups of your favorite gluten-free crispy fried onions from a bag. The dish still tastes holiday-worthy and shaves off about 15 minutes.
