Step 1: Wash and trim the fresh green beans. Bring a large pot of salted water to a rolling boil. Prepare an ice bath by filling a large bowl with ice and water.
Step 2: Add the trimmed green beans to the boiling water and blanch for 3-5 minutes, or until tender-crisp and bright green. Immediately transfer the blanched beans to the ice bath to stop the cooking process. Once cooled, drain thoroughly.
Step 3: In a large skillet, melt the butter or heat the olive oil over medium heat. Add the minced garlic (and red pepper flakes, if using) and sauté for about 30 seconds, until fragrant. Be careful not to burn the garlic.
Step 4: Add the drained green beans to the skillet. Toss gently to coat them in the garlic butter. Cook for another 3-5 minutes, stirring occasionally, until heated through and slightly tender.
Step 5: Remove the skillet from the heat. Stir in the grated Parmesan cheese and fresh lemon juice. Toss to combine, allowing the cheese to melt slightly.
Step 6: Season with salt and freshly ground black pepper to taste. Serve immediately and enjoy your perfectly cooked fresh green bean recipes!