Break the ramen noodles into small pieces and cook according to package instructions. Drain and let cool.
In a large bowl, combine the shredded cabbage, shredded carrots, sliced green onions, slivered almonds, and sunflower seeds.
In a separate bowl, whisk together the vegetable oil, rice vinegar, sugar, and ramen seasoning until well combined.
Add the cooled ramen noodles to the vegetable mixture and pour the dressing over the top.
Toss everything together until well coated and serve immediately or refrigerate for later.