3. Step-by-Step Cooking Instructions & Crisping Secrets
The cooking process is straightforward, but it’s essential to pay attention to the temperature and cooking time.
You want to achieve a nice, golden-brown crust on the mashed potatoes, which will add texture and flavor to the dish.
I also recommend using a cast-iron skillet or 9×13 inch baking dish to achieve a crispy bottom.
Save Cooking Steps
Step-by-Step Culinary Timeline
1. Preheat the oven to 375°F (190°C). In a large skillet, heat the olive oil over medium-high heat. Add the chopped onion and cook until softened, about 5 minutes.
2. Add the minced garlic and cook for 1 minute, until fragrant. Add the ground lamb and cook until browned, breaking it up with a spoon as it cooks.
3. Stir in the beef broth, tomato paste, thyme, salt, and black pepper. Bring the mixture to a simmer and let cook for 5 minutes, until the liquid has thickened slightly.
4. Stir in the frozen peas and carrots. Reduce the heat to low and let simmer for 2 minutes, until the peas and carrots are tender.
5. Transfer the lamb mixture to a 9×13 inch baking dish. Top with the mashed potatoes and smooth the top with a spatula.
6. Bake the shepherd's pie in the preheated oven for 20-25 minutes, until the potatoes are golden brown and the filling is hot and bubbly.
Meal-Prep Storage & Crispy Air-Fryer Reheating Guide
• Cool Before Sealing: Let cooked portions cool for 10 minutes before sealing in glass containers so steam never softens the crust (keeps 4 days in the fridge).
• Sauce on the Side: Store dips, drizzles, and fresh herbs separately until right before serving.
• 3-Minute Crispy Reheat: Reheat in a 380°F (193°C) air fryer or dry cast-iron skillet for 3–4 minutes to restore shatteringly crisp edges.
Continue to Part 4 for the official printable MyTastyTips Recipe & Macros Card plus reader FAQs!
