Yes, you can sauté green beans without blanching. To do so, add the beans to a large skillet with 1 cup of water. Cook uncovered on medium heat for about 5 to 10 minutes, or until the pan gets dry, and the beans turn to a bright green color. Now add the olive oil, minced garlic, salt, and black pepper; turn the heat to medium-high and cook the beans for 3 to 5 more minutes, moving them around the pan until you reach your desired texture.