Preheat the oven to 350℉. Spray the 9x13 pan with non-stick spray (or rub with oil)
CHICKEN FILLING
In a large pot over medium heat add the butter to melt, add the onions, carrots, and celery. Sauté for 15 minutes, stirring occasionally.
8 tablespoon salted butter, 1 large yellow onion, 2 cups carrots, 1 ½ cups celery
Add the garlic and sauté 1 minute.
2 garlic cloves
Stir in the chicken base to melt and the seasonings to coat the veggies.
1 tablespoon chicken base, 1 teaspoon kosher salt, ½ teaspoon black pepper, ½ teaspoon onion powder
Sprinkle the flour over the veggies. Stir to coat and cook the flour for 1 minute.
½ cup all purpose flour
Whisk in the chicken broth, scraping browned bits from the bottom of the pot. Let it simmer for 5 minutes to thicken, stirring occasionally.
4 cups chicken stock or broth
Add in the peas, chicken and heavy cream. Stir and simmer for another 5 minutes, stirring occasionally.
1 ½ cups frozen peas, 3 cups cooked chicken (rotisserie chicken works well!!), 1 cup heavy cream
BAKING
Pour into the 9x13 pan, pop in the oven for 15 minutes.TIP: if your 9x13 pan is shallow, place it on a rimmed baking sheet to catch any spills in the oven.
Remove from the oven and place the biscuits on top. Place back in the oven for another 20 minutes. TIP: if the biscuits are browning on the top too much, tent foil over top.
8 count store bought biscuits
Let the chicken and biscuits cool for 10-15 minutes before serving (it will be SO hot). It will thicken a little as it cools.
Ladle the chicken and biscuits into bowls. Great served with a side salad!
STORING & REHEATING
Keep any leftover chicken and biscuits in the fridge, covered, for up to 4 days.
To reheat portion in a bowl, cover with a damp paper towel, microwave each portion for 1 minute. Stir. Add a biscuit on top and microwave for an additional 15-20 seconds.
MAKE AHEAD INSTRUCTIONS
Make the chicken filling completely. Pour into a 9x13 baking dish and let cool. Cover and pop in the fridge for up to 2 days.
Place on a rimmed baking sheet and place in a 350°F oven for 25 minutes.Remove from the oven and top with biscuits. Bake for another 20 minutes.