Gluten-Free Chicken Dijon Shepherd's Pie
A comforting twist on traditional shepherd's pie featuring tender chicken pieces in a creamy Dijon mustard gravy topped with fluffy instant mashed potatoes. The tangy mustard adds depth to the savory chicken and vegetable filling, while the convenient potato mix creates a perfectly golden crown. This family-friendly casserole transforms simple ingredients into a satisfying dinner that's ready in under an hour. Perfect for busy weeknights when you crave homestyle comfort food without the fuss.
Ingredients
- 1 lb boneless skinless chicken breasts, cut into 1/2-inch pieces
- 1 cup onions, coarsely chopped (2 medium)
- 2 cups frozen mixed vegetables, from 1-lb bag
- 1 jar (12 oz) chicken gravybeef gravy1:1gluten-free
changes flavor profile
- ½ cup milk
- 1 tablespoon Dijon mustard
- ¼ teaspoon dried thyme leaves
- 1 ¼ cups water
- ¾ cup milk
- ¼ cup sour cream
- ½ teaspoon garlic salt
- 2 cups plain mashed potato mix, dry
- paprika
Instructions
- 1
Heat oven to 350°F
- 2
Cook chicken and onions in nonstick skillet, stirring occasionally, until chicken is browned and no longer pink in center
- 3
Stir in frozen mixed vegetables, chicken gravy, milk, Dijon mustard, and dried thyme leaves
- 4
Spoon mixture into ungreased 8-inch square glass baking dish
- 5
Heat water to boiling in saucepan, then remove from heat
- 6
Stir in milk, sour cream, garlic salt, and mashed potato mix until combined
- 7
Spoon potato topping over chicken mixture and sprinkle with paprika
- 8
Bake uncovered until bubbly
Tips
Use a 12-inch nonstick skillet to prevent chicken from sticking and ensure even browning throughout the cooking process.
Let the casserole rest for 5 minutes after baking to allow the filling to set up for easier serving.
For extra flavor, add 1/2 cup shredded cheese to the potato topping before sprinkling with paprika.
Good to Know
Refrigerate leftovers up to 3 days in covered container. Reheat individual portions in microwave or reheat whole dish covered in 350°F oven until heated through.
Assemble casserole up to 1 day ahead, cover and refrigerate. Add 5-10 minutes to baking time if baking from cold.
Serve hot directly from baking dish with a large spoon. Pairs well with a simple green salad or steamed green beans.
Common Mistakes
Don't skip browning the chicken to avoid bland, pale meat in the finished dish.
Avoid overmixing the potato topping to prevent gummy texture.
Don't overbake to prevent the top from becoming too dark or the filling from drying out.
Substitutions
Dairy-Free Swaps
Gluten-Free Swaps
changes flavor profile
FAQ
Can I use fresh vegetables instead of frozen?
Yes, use 2 cups diced fresh vegetables like carrots, peas, and corn. Cook them with the chicken and onions until tender before adding other filling ingredients.
What if I don't have Dijon mustard?
Regular yellow mustard works but use only 2 teaspoons as it's milder. You can also substitute with 1 tablespoon whole grain mustard for texture.
How long will this keep in the refrigerator?
Properly stored in the refrigerator, this shepherd's pie will keep for 3-4 days. Reheat portions in the microwave or oven until heated through.