Here we feel that it is important to review the food preparation of green beans. The frozen green beans were first steamed for 10 minutes, then seasoned with salt, pepper, olive oil and garlic mix. This was followed by 15 minutes of baking at 375 degrees Fahrenheit. The green beans were then stored in a warmer at 180 degrees, placed in a pan and sent to the serving line (140 degrees), where they were served rather quickly, as most of the lunch items had a side order of green beans.