01 -
First things first, get those potatoes peeled and quartered. Pop them in a big pot, cover with cold water, and add a generous pinch of salt. While they're simmering away, finely chop your carrots, celery, and onion. Then, shred that beautiful rotisserie chicken. I always taste a piece of the chicken just to make sure it's as good as I remember. This is where I sometimes forget to salt the water for the potatoes, so don't be like me!
02 -
In a large skillet, melt a knob of butter over medium heat. Toss in your chopped carrots, celery, and onion. Sauté them until they start to soften, about 5-7 minutes. You want them tender, not mushy. This is where the kitchen starts smelling absolutely divine, a real warm, savory aroma. I used to rush this step, and my veggies would be a bit too crunchy in the final Rotisserie Chicken Shepherds Pie, so take your time here!
03 -
Once your veggies are tender, sprinkle in the flour and stir for a minute or two to cook out that raw flour taste. Then, slowly whisk in the chicken broth and milk. Let it simmer, stirring constantly, until it thickens into a lovely, rich sauce. Stir in your shredded chicken and frozen peas. Season with salt, pepper, and a pinch of dried thyme. Taste it! Adjust seasonings as needed. This is the heart of your pie, so make it sing!
04 -
By now, your potatoes should be fork-tender. Drain them well, then return them to the hot pot. Add butter, milk, and a good pinch of salt and pepper. Mash them until they’re smooth and creamy. Honestly, I sometimes add an extra pat of butter here—you can never have too much, right? My biggest mistake here? Not draining the potatoes enough, which makes for a watery mash. Don't do that!
05 -
Spoon the chicken and veggie filling into a 9x13 inch baking dish, spreading it evenly. Now, for the fun part: dollop spoonfuls of the creamy mashed potatoes over the top. Gently spread them out to cover the entire filling. I like to make little peaks with the back of a spoon or a fork—it gets nice and crispy in the oven. Sometimes my kitchen looks like a potato explosion at this point, but it's worth it!
06 -
Pop your assembled Rotisserie Chicken Shepherds Pie into a preheated oven at 375°F (190°C) for about 25-30 minutes, or until the filling is bubbly and the potato topping is beautifully golden brown and slightly crispy. The aroma is incredible—a mix of savory chicken and buttery potatoes. Let it rest for a few minutes before serving, honestly, it makes slicing so much easier and prevents a messy collapse.