Step 1

Preheat the oven to 375°F.

Step 2

Chop potatoes into even sized pieces and add to a bowl with cold water. Add the green beans to a bowl with cold water as well. Soak potatoes and beans for about 10 minutes.

Step 3

In a small bowl, mix oil, salt, pepper, onion, garlic, rosemary and parsley together.

Step 4

Drain the potatoes and green beans. Transfer potatoes to a baking dish and pour 2/3 of the oil and onion mixture over the potatoes. Toss the potatoes so they are well coated with oil. Bake at 375°F for 30 minutes.

Step 5

Use the remaining 1/3 of oil and onion mixture to marinate green beans while the potatoes are in the oven.

Step 6

After 30 minutes, remove potatoes from the oven. Using oven mitts, carefully mix green beans in a baking dish. Be careful not to burn yourself. Bake for an additional 20 minutes.

Step 7

Remove the green beans and potatoes from the oven when potatoes are crispy. Serve immediately.