Preheat the Oven
Preheat your oven to 400°F (200°C). Lightly grease a 9x13-inch baking dish or a deep pie dish.
Make the Creamy Chicken Filling (10–12 minutes)
In a large skillet or saucepan, melt 2 tablespoons butter over medium heat. Add diced onion and cook for 3–4 minutes until softened. Stir in minced garlic and cook for another 30 seconds.
Add the frozen veggies and cook for another 3 minutes. Stir in the flour and cook, stirring constantly, for 1–2 minutes until flour is fully absorbed.
Slowly add in the chicken broth while whisking. Add milk, salt, pepper, and thyme. Simmer until thickened—about 5 minutes. Stir in the shredded chicken and turn off the heat.
Pour Filling Into the Dish
Pour the creamy chicken mixture into your prepared baking dish and spread it evenly.
Make the Biscuit Dough (5 minutes)
In a mixing bowl, combine the Cheddar Bay Biscuit Mix with shredded cheddar cheese and cold water. Stir until a dough forms—don’t overmix!
Drop spoonfuls of the dough over the chicken mixture, spreading them out like biscuit clouds. Leave a little space between them for spreading.
Bake It! (25–30 minutes)
Place the dish in the oven and bake for 25–30 minutes, or until the biscuits are golden brown and cooked through.
Add the Garlic Butter Topping
While it’s baking, melt 1/4 cup butter and mix with the seasoning packet from the biscuit mix. Brush over the hot biscuits right after baking.
Let it rest for 5 minutes before serving—then dig in!