Step 1

Preheat oven to 425F.

Step 2

Heat a large nonstick skillet over medium-high heat and add the oil. Add onions, season with 1/4 teaspoon salt and pepper.

Step 3

Cook, stirring often until they begin to brown, about 10 minutes. Reduce heat to medium low and cook stirring until the onions are deep golden brown and soft, about 30 minutes.

Step 4

Meanwhile place the green beans on a sheet pan and spritz all over with olive oil spray, 1/2 teaspoon salt and black pepper, to taste.

Step 5

Bake until tender crisp, about 16 to 18 minutes, turning halfway.

Step 6

Transfer to a platter and top with caramelized onions. Serve hot.