Preheat the oven to 375°F.
Place the biscuits on a sheet pan. Prebake the biscuits for half the time listed on the can: For Grands biscuits bake 8 minutes. For smaller 12 oz biscuits bake 5 minutes
In a large saucepan, melt the butter over medium heat. Add the frozen vegetables and cook for 4–5 minutes.
Stir in the garlic, onion powder, sage, salt, and pepper. Cook for 1 minute more.
Add the cream of chicken soup, chicken broth, and shredded chicken. Bring to a low simmer and cook a few minutes until the mixture is warmed through and slightly thickened.
If you are using an oven safe skillet, top the chicken mixture with the partially cooked biscuits. If not, spray a 9x13 casserole dish with nonstick spray. Pour the chicken mixture into the dish and top with the partially baked biscuits.
Place in to the oven and bake uncovered for 10–15 minutes, or until the biscuits are golden brown and cooked through.
Let rest for a few minutes before serving. Enjoy!