
These Parmesan roasted green beans are crisp-tender, garlicky, and finished with a golden panko crust. They make a quick, flavorful vegetable side dish for weeknights, holidays, or simple family dinners.
Preheat the oven to 425°F / 220°C. For a faster browned topping, you can use the broiler on high with the rack about 12 inches from the heat source.
Place the trimmed green beans on a rimmed baking sheet. Add 1 tbsp olive oil, minced garlic, salt, and black pepper, then toss until the beans are evenly coated.
Spread the beans into a tight, even layer so they sit close together rather than scattered across the pan. This helps the topping stay on the beans.
Sprinkle the panko breadcrumbs evenly over the beans, followed by the grated Parmesan. Drizzle the remaining 1 tbsp olive oil over the top.
Roast for about 15 minutes, or broil for about 8 minutes, until the beans are tender and the Parmesan topping is golden and crisp. Watch closely if broiling to prevent burning.
Use a wide spatula to lift the beans and crunchy topping onto a serving platter. Serve immediately while the topping is crisp.
Use dry green beans so the oil and crumbs cling well; excess moisture can make the topping soggy. Freshly grated Parmesan melts and browns better than shelf-stable grated cheese. Leftovers can be refrigerated for up to 3 days, then reheated in a hot oven or air fryer to revive the crisp topping.