Roasted Green Beans and Garlic Combine 2/3 cup thinly sliced shallots and 1 1/2 pounds trimmed green beans on a jelly-roll pan coated with cooking spray. Drizzle with 1 tablespoon olive oil; toss to coat. Bake at 450° for 10 minutes. Add 5 thinly sliced garlic cloves; toss to combine. Bake at 450° for 10 minutes or until green beans are lightly browned. Sprinkle with 1/2 teaspoon salt and 1/4 teaspoon freshly ground black pepper; drizzle with 1 tablespoon fresh lemon juice.