Baked Shepherd’s Pie with Caramelized Onion and Peas

By AislePrompt Editorial · Published 2026-05-08 · Updated 2026-05-08

A hearty baked shepherd’s pie featuring rich caramelized onions, tender ground beef, and sweet peas topped with creamy mashed potatoes browned to perfection. This British-inspired beef recipe, ready in about 65 minutes, layers ground beef, yellow onion, carrots into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 520 calories and feeds 4, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 1 lb ground beef
• 1 large, diced yellow onion
• 2 medium, diced carrots
• 1 cup frozen peas
• 3, minced garlic cloves
• 2 tbsp tomato paste
• 1 cup beef broth
• 1 tbsp Worcestershire sauce
• 4 tbsp butter
• 2 tbsp all-purpose flour
• 3 large, peeled and quartered russet potatoes
• 1/2 cup milk
• 1 1/2 tsp, divided salt
• 1 tsp, divided pepper
• 2 tbsp olive oil

The pan we’d use for this → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Preheat oven to 400°F. Place 3 large peeled and quartered russet potatoes in a large pot of salted water with 1 tsp salt and bring to a boil. Cook for 15-20 minutes until tender, then drain.
2. Step 2: While potatoes cook, heat 2 tbsp olive oil in a large skillet over medium heat. Add 1 large diced yellow onion and sauté for 10 minutes until golden and caramelized, stirring occasionally.
3. Step 3: Add 1 lb ground beef and 3 minced garlic cloves to the skillet. Cook over medium-high heat, breaking up meat, until browned, about 6-8 minutes.
4. Step 4: Stir in 2 diced medium carrots and cook for 4 minutes until slightly softened. Add 2 tbsp tomato paste and cook for 2 minutes until fragrant.
5. Step 5: Sprinkle 2 tbsp all-purpose flour over the mixture and stir to combine, cooking for 1 minute to remove raw flour taste.
6. Step 6: Pour in 1 cup beef broth and 1 tbsp Worcestershire sauce, stirring constantly until sauce thickens, about 3-4 minutes. Stir in 1 cup frozen peas and season with 1/2 tsp salt and 1/2 tsp pepper.
7. Step 7: Mash the cooked potatoes with 4 tbsp butter, 1/2 cup milk, 1/2 tsp salt, and 1/2 tsp pepper until smooth and creamy.
8. Step 8: Transfer beef mixture to a 9x9-inch baking dish, spreading evenly. Spoon mashed potatoes over the top and smooth with a spatula.
9. Step 9: Bake in the preheated 400°F oven for 20-25 minutes until the edges are bubbly and the potato topping is golden brown.
10. Step 10: Let rest for 5 minutes before serving.