Why It Works

• Whisking the wet ingredients together before adding them to the skillet ensures the mustard emulsifies smoothly into the sauce without splitting.
• Using low-moisture mozzarella for the crust provides structure and prevents the dough from becoming too sticky or wet to handle.
• Browning the chicken separately and adding it back at the end keeps the meat tender and prevents it from overcooking while the vegetables simmer.

Common Pitfalls to Avoid

• Dough seizing: Using a cold egg straight from the fridge can cause the melted mozzarella to harden instantly. Always use a room-temperature egg for the dough.
• Sticky dough: If the almond flour crust sticks to your hands, lightly wet your fingers with cold water or press it out between layers of parchment paper.
• Grainy sauce: Ensure your heat is set to low before stirring in the cheddar cheese. Boiling cheese can cause the proteins to separate, leading to a grainy texture.

Variations

• Change the protein: This filling works beautifully with leftover roasted turkey, cooked ground beef, or shredded rotisserie chicken to save time.
• Adjust the vegetables: To lower the carb count further, swap the peas and carrots for finely chopped broccoli florets, bell peppers, or mushrooms.

Allergy Alert

This recipe contains dairy, eggs, and tree nuts (almonds). Substitute as needed.