Why I Make Shepherd’s Pie on the Traeger Every St. Patrick’s Day

Shepherd’s Pie is one of my go-to St. Patrick’s Day meals, and honestly, it’s way easier than you think. If you’re looking for a cozy meal that doesn’t feel boring, this one’s worth firing up the Traeger for.  The lamb filling keeps it traditional, but the potatoes pick up a light smoke, making the whole dish eat like something I ordered at a Kitty O Se’s pub in Kinsale Ireland – yeah that’s an actual place.

Here’s what I’ll walk you through:

• How to build traditional flavors in the meat and veggie base without overthinking it
• Mashed potatoes that stay creamy but don’t fall apart on the smoker
• Using the Traeger for steady heat and subtle smoke
• Finishing it all together so the top gets that perfect crust

Nothing complicated here. Just authentic Irish food, made with a backyard barbecue twist. 

Let’s get started.

Why You Should Make This Recipe

This is comfort food that feels familiar, but still unique. Smoking the Shepherd’s Pie instead of baking it gives it an American twist to one of my favorite Irish dishes. It’s still warm, cozy, and nostalgic, just with a little backyard BBQ attitude. And yeah, it somehow makes everyone feel a little more Irish when you dig in.

• Great for feeding a crowd or setting yourself up with leftovers for the week
• Made with simple, everyday ingredients
• One of those rare comfort dishes that actually benefits from smoke

Ingredients

Filling

• 2 lb ground lamb
• 1 large yellow onion, diced
• 2 carrots, peeled and diced
• 1 cup frozen peas
• 3 cloves garlic, minced
• 2 tbsp tomato paste
• 1 cup beef broth
• 2 tbsp Bear & Burton’s W Sauce
• 2 tbsp olive oil
• 2 tbsp Rock’s Anytime Seasoning

Potatoes

• 2½ lb russet potatoes, peeled and cubed
• ½ cup whole milk
• 4 tbsp butter

Best Wood Pellets or Chunks for Shepherd’s Pie

You’re looking for gentle smoke here. Think background flavor, not a campfire takeover.

• Signature Blend – Balanced and versatile, you can’t really miss with this
• Meat Church Blend – Oak-forward and sturdy without being heavy
• Hickory – Classic and bold if you like a more traditional smoke profile

Step 1: Prep the Potatoes (20 minutes)

• Use the induction top on the Timberline XL to bring a large pot of salted water to a boil
• Peel and dice, before adding the potatoes and cook until fork-tender
• Drain and return them to the pot
• Add butter and milk, then mash/mix until smooth
• Season with Rock’s Anytime Seasoning and set aside

Step 2: Build the Meat Filling (25 minutes)

• Preheat the Timberline XL to 350°F
• Heat a cast iron skillet over medium heat on the induction top
• Add olive oil, then the onion and carrots
• Cook until softened, about 5–7 minutes
• Add garlic and cook for about 30 seconds
• Add the ground lamb and cook until browned
• Stir in tomato paste, W Sauce, and beef broth
• Season with Rock’s Anytime Seasoning
• Simmer until slightly thickened, then fold in the peas

Step 3: Assemble the Shepherd’s Pie (10 minutes)

• Spoon the mashed potatoes evenly over the filling
• Gently spread them edge to edge
• Use a fork to rough up the surface so it browns better

Step 4: Smoke and Finish (40–45 minutes)

• Place the pan directly on the Traeger grates
• Cook at 350°F until bubbling around the edges
• Bump the heat to 400°F for the last 10 minutes to brown the top
• Remove and let it rest for about 10 minutes before serving

Key Steps at a Glance

• Boil and mash the potatoes
• Build a rich meat and vegetable base
• Assemble everything in one pan
• Smoke until hot, bubbly, and lightly browned on top

Pro Tips

• For extra crust, sprinkle a little shredded white cheddar on top before the final heat bump
• Lamb gives you that classic Shepherd’s Pie flavor, but beef works great if that’s what you have
• Don’t skip the rest time. It helps everything set and serve cleaner

Common Questions

Can I make this ahead of time?
Absolutely. Assemble it, refrigerate, then smoke it the next day. Just add about 10 extra minutes to the cook time.

What pan works best?
Cast iron is ideal, but a sturdy foil pan works perfectly too.

Can I freeze leftovers?
Yep. Portion it out, wrap it well, and freeze for up to two months.

Is this too smoky for kids?
Not at all. Mild pellets keep the smoke subtle and approachable.

Final Thoughts

This Shepherd’s Pie is warm, hearty, and quietly impressive. It looks simple, but the Traeger adds just enough depth to make people ask what you did differently.

Ready to try it? Fire up the Timberline XL and make comfort food the way it’s meant to be cooked.