Dinner · Part 2 of 3: Instructions
Herb Roasted Chicken with Garlic Mustard Potatoes and Green Beans Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 4
Before you start
Before beginning, ensure your workspace is organized and all ingredients are measured and ready. Preheat the oven to 400°F (200°C) early so it is at the correct temperature when you are ready to roast. Have your baking dish cleaned and dried.
Wash the green beans and potatoes thoroughly, removing any blemishes. Pat the chicken breasts dry using paper towels to remove excess moisture, which helps achieve better browning. Keep a meat thermometer handy to monitor the doneness of the chicken accurately.
Ingredients at a glance (5)
- 4 pieces boneless skinless chicken breasts
- 2 tbsp mixed dried herbs
- 1 lb baby potatoes, halved
- 8 oz green beans, trimmed
- 3 tbsp garlic mustard sauce
Instructions
Preparation and Seasoning
- Prepare the IngredientsPreheat your oven to 400°F (200°C). Wash and trim the green beans. Halve the baby potatoes. Pat the chicken breasts dry with paper towels to ensure a better sear during the roasting process.Look for The oven is preheated and vegetables are prepped.Tip Ensure all vegetables are cut to a similar size for even cooking.
- Season the ChickenPlace the chicken breasts in the glass baking dish. Coat thoroughly with the mixed dried herbs. Set aside for a few minutes while you arrange the vegetables.Look for The chicken is evenly coated in herbs.Tip Use your hands to press the herbs firmly into the chicken surface.
At the end of this phase, the oven is fully preheated, the vegetables are prepped and cut into uniform pieces, and the chicken is thoroughly coated in the herb mixture. The kitchen should smell faintly of the dried herbs. Ensure the chicken is positioned in the center of the dish, ready for the vegetables to be added around it. This sets the stage for even cooking and ensures all components are ready to go into the oven without delay.
Assembly and Sauce
- Assemble the DishArrange the halved baby potatoes and trimmed green beans around the chicken in the baking dish. Drizzle the garlic mustard sauce over the potatoes and beans, tossing gently to coat them evenly.Look for The dish looks vibrant and well-distributed.Tip Keep the chicken in the center to allow the juices to flavor the vegetables.
The dish is now assembled with the potatoes and green beans arranged around the chicken. Everything is lightly coated in the garlic mustard sauce, which should be distributed evenly across the vegetables.
Check that the sauce has not pooled too much at the bottom, which could make the vegetables overly soft. The dish should look colorful and well-organized, with the ingredients ready to be roasted immediately to ensure the best texture and flavor development.
Roasting and Resting
- Roast and RestPlace the baking dish in the oven and roast for 45 minutes. Ensure the chicken reaches an internal temperature of 165°F (74°C). Remove from the oven and let the chicken rest for 5 minutes before slicing and serving.Look for The chicken is golden brown and juices run clear.Safe temperature 165°F (74°C) internal temperature (poultry)Tip Check the temperature at the thickest part of the breast.
The chicken and vegetables are finished roasting. The chicken is golden brown and has reached the required 165°F (74°C). The potatoes are tender and the green beans are perfectly cooked. The aroma should be savory and inviting. After letting the chicken rest for 5 minutes, it is ready to be sliced and served. Ensure the chicken has rested sufficiently to lock in the juices before you begin plating the meal for service.
Common mistakes
A common mistake is overcrowding the baking dish, which prevents the air from circulating properly and leads to steamed rather than roasted vegetables. Ensure there is enough space between the chicken and the vegetables.
Another error is failing to dry the chicken properly; excess moisture prevents the herbs from creating a nice crust and leads to a soggy surface. Finally, not checking the internal temperature of the chicken can lead to overcooking it, resulting in dry, tough meat that loses its natural flavor.
How to tell it’s done
The chicken is perfectly cooked when it reaches an internal temperature of 165°F (74°C) at its thickest point. The juices should run clear when pierced with a fork. The potatoes should be fork-tender, easily yielding to light pressure, and the green beans should retain a slight crunch while being fully cooked.
Allowing the chicken to rest for 5 minutes after removing it from the oven is essential, as this allows the juices to redistribute throughout the meat, resulting in a more succulent final product.
- Poultry: 165°F (74°C) in the thickest part
Up next · Part 3 of 3
2 variations · storage & make-ahead · 4 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)