• Adjust rack to top position and preheat oven to 450 degrees. Wash and dry produce. • Dice potatoes into 1/2-inch pieces. Halve and peel onion; grate one half on the largest holes of a box grater. Thinly slice remaining onion. • Place potatoes in a medium pot with enough salted water to cover by 2 inches. Bring to a boil and cook until tender, 15-20 minutes. Reserve 1/2 cup potato cooking liquid (3/4 cup for 4 servings), then drain. • Return potatoes to pot and mash with half the sour cream (you’ll use the rest later) and 2 TBSP butter (4 TBSP for 4) until smooth and creamy, adding splashes of reserved potato cooking liquid as needed. Season with salt and pepper. • Keep covered off heat until ready to serve.

• While potatoes cook, in a large bowl, combine beef*, grated onion, panko, garlic powder, 1/4 tsp nutmeg (1/2 tsp for 4 servings), salt (we used 3/4 tsp, 11/2 tsp for 4), and pepper. (You’ll use more nutmeg later.) • Form mixture into 10-12 11/2-inch meatballs (20-24 for 4) and place on a lightly oiled baking sheet. • Roast on top rack until browned and cooked through, 14-16 minutes.

• Meanwhile, melt 1 TBSP butter in a large pan over medium-high heat. Add peas and cook, undisturbed, until lightly browned, 2-3 minutes. • Stir peas. Cook, stirring occasionally, until lightly charred, 1-2 minutes more. • Turn off heat; transfer to a plate. Wipe out pan.

• Heat a drizzle of oil in same pan over medium heat. Add sliced onion and a pinch of salt; cook, stirring occasionally, until onion is browned and softened, 3-6 minutes. • Add 1 TBSP butter (2 TBSP for 4 servings) and cook, whisking, until butter melts. • Sprinkle flour over onion; cook, whisking constantly, until lightly browned, 1-2 minutes.

• Slowly whisk 1 cup water (11/2 cups for 4 servings) into pan with onion. Add stock concentrates, cream cheese, and 1/4 tsp nutmeg (1/2 tsp for 4); whisk until cream cheese melts and gravy has thickened, 3-5 minutes. • Remove from heat and whisk in remaining sour cream. Taste and season with salt and pepper. TIP: If gravy seems too thick, stir in a few splashes of reserved potato cooking liquid.

• Add meatballs to pan with gravy; toss to coat. • Divide mashed potatoes and meatballs and gravy between bowls. Top meatballs with peas and serve. Ground Beef is fully cooked when internal temperature reaches 160°.