Loaded Potato Soup

Name: Loaded Potato Soup
Cuisine: European, American
Ingredients: 1 diced onion; 2 Tbsp olive oil; 1 tsp salt; 1 tsp pepper; 3 lb red diced potatoes (or 5 rutabaga); 8 cups vegetable broth; 11 Tbsp margarine; 3/4 cup flour; 2 cups oat milk; 2 cups oat milk; 8oz diced ham or vegan meat; 1 box cooked diced bacon or vegan bacon; 8oz vegan sour cream; 2 cups shredded vegan cheese; 3 bunches sliced green onions