Slow Cooker: Follow the first four steps, then transfer all contents to a slow cooker. Cook on low for 6–8 hours.
Instant Pot: Use the sauté function to follow steps 1–4. Deglaze with wine, add remaining ingredients, and cook on high pressure for 45 minutes. Let pressure release naturally for 15 minutes.
Make Ahead: This dish is ideal for preparing in advance. Complete up to step 8, refrigerate, and cook later.
Freezing (Before Cooking): Assemble through step 8, then freeze in a safe container for up to 5 months. Thaw in the fridge for 24 hours before baking as instructed.
Freezing (After Cooking): Cool completely before freezing. Store up to 4 months. Thaw in the fridge and reheat gently on the stove or in the microwave.