Modern Green Bean Casserole  - Jennieo Turkey

Ingredients

• 2 large shallots, thinly sliced into rings
• 1/3 cup flour, divided
• 1/4 cup milk
• 1/4 cup oil
• 2 pounds fresh green beans, trimmed
• 1/4 cup butter
• 1 cup chopped onion
• 8 ounces mushrooms, roughly chopped
• 1 teaspoon garlic powder
• 1/2 teaspoon dried thyme
• Salt and pepper, to taste
• 1 cup chicken broth
• 1 cup milk
• 1/2 cup grated Parmesan cheese