Preheat the oven to 400°F (200°C). Toss the baby potatoes with 1 tablespoon olive oil, dried thyme, salt, and pepper. Spread on a baking sheet and roast for 25-30 minutes or until golden and tender.
While potatoes roast, heat 1 tablespoon olive oil in a large skillet over medium-high heat. Season chicken breasts with salt and pepper and cook for 5-6 minutes on each side until browned and cooked through. Remove chicken from skillet and set aside.
In the same skillet, add minced garlic and sliced mushrooms. Sauté for 4-5 minutes until mushrooms are softened.
Reduce heat to medium-low and stir in the heavy cream. Let simmer for 3-4 minutes until the sauce thickens slightly.
Return the chicken breasts to the skillet, spoon sauce over, and cook for an additional 2 minutes.
Serve the creamy mushroom chicken alongside the roasted herb potatoes. Garnish with fresh chopped parsley.
Notes
To add more flavor, consider marinating the chicken in lemon juice and herbs for 30 minutes before cooking.