Herb-Roasted Chicken Breasts with Garlic Mashed Potatoes

By AislePrompt Editorial · Published 2026-04-08 · Updated 2026-04-08

Seasoned with rosemary and garlic, served atop creamy mashed potatoes for a comforting family dinner. This American-inspired chicken recipe, ready in about 45 minutes, pairs chicken breasts, olive oil, fresh rosemary for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. 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

• 4 (6 oz each) chicken breasts
• 2 tbsp olive oil
• 1 tbsp, chopped fresh rosemary
• 3 cloves, minced garlic
• 1.5 lbs, peeled and diced potatoes
• 2 tbsp unsalted butter
• 1/4 cup whole milk
• 1/2 tsp salt
• 1/4 tsp black pepper

Nonstick skillets worth buying → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Pat 4 chicken breasts (6 oz each) dry, then rub with 1 tbsp olive oil, 1 tbsp chopped fresh rosemary, and 3 minced garlic cloves. Season with 1/2 tsp salt and 1/4 tsp black pepper.
2. Step 2: Heat 1 tbsp olive oil in an oven-safe skillet over medium-high heat. Sear chicken for 4 minutes per side until golden, then transfer to a 400°F oven and bake for 12 minutes.
3. Step 3: While chicken bakes, boil 1.5 lbs diced potatoes in salted water for 15 minutes until fork-tender. Drain, then mash with 2 tbsp unsalted butter, 1/4 cup whole milk, 1/2 tsp salt, and 1/4 tsp black pepper until smooth.
4. Step 4: Let chicken rest for 5 minutes before slicing. Serve with a generous spoonful of mashed potatoes.