First things first: Preheat your oven to 400°F (200°C). This step might seem small, but it sets the stage for a great bake.

In a large skillet, heat the olive oil over medium heat. Once hot, add the minced garlic and chopped onion. Sauté them for about 3–5 minutes or until the onion is translucent. The smell? Absolutely divine!

Add the lean ground turkey into the skillet. Break it apart with a spatula, and cook until it’s browned and no longer pink, about 5–7 minutes. Season it with salt and pepper while it cooks to build flavor.

Once the turkey is cooked, toss in the diced celery and carrots. Stir everything together and let it cook for another 5 minutes. The veggies should soften slightly but still maintain their crunch.

Add the tomato paste and chicken broth to the skillet. Mix everything well. Then, sprinkle in the thyme, rosemary, smoked paprika, and Worcestershire sauce. Let this simmer for about 5 more minutes, allowing the flavors to meld together beautifully.

Next, stir in the frozen sweet peas. Don’t worry about thawing them beforehand; they’ll warm up nicely in the pan. Mix everything until well combined, then remove the skillet from heat.

While the turkey mixture cools slightly, prepare the creamy roasted garlic cauliflower mash. You can either steam or boil cauliflower florets until tender. Blend them with roasted garlic, a splash of olive oil, salt, and pepper until smooth. It should be silky and luscious.

In a baking dish, spread the turkey and vegetable mixture evenly at the bottom. Top it generously with the garlic cauliflower mash, spreading it all the way to the edges. You want to create a seal to keep the filling nice and cozy inside.

Place the dish in the preheated oven and bake for 20-25 minutes until the top is slightly golden and the filling is bubbling. The aroma will be heavenly!

Pull out your delicious Shepherd's Pie from the oven and let it rest for a few minutes before serving. Grab a spatula and dish it out! You won’t believe how delicious a healthy Shepherd's Pie can be.