Shepherd's Pie Recipe - Today's Parent

Ingredients

• 1 1/2 lb. Yukon Gold potatoes, peeled and quartered
• 1/4 cup unsalted butter, divided
• 1/4 cup milk
• 3/4 tsp salt, divided
• 1/4 cup grated cheddar, divided
• 1 cup peeled, chopped carrot
• 1/2 cup chopped onion
• 1/2 cup chopped celery
• 1 lb. extra-lean ground beef
• 2 tsp chopped garlic
• 4 tsp all-purpose flour
• 1 1/2 cups sodium-free beef broth
• 2 tsp Worcestershire sauce
• 1 tsp Dijon mustard
• 1 tbsp thyme
• 1/8 tsp black pepper
• 1 cup fresh or defrosted frozen green peas