Authentic Louisiana Red Beans and Rice

Ingredients

• 1 pound dry red beans
• 2 tablespoons olive oil
• 12 to 14 ounces andouille sausage, cut into 1/4-inch slices
• ½ tablespoon butter
• 1 large yellow onion, diced
• 2 celery ribs, diced
• 1 small red bell pepper, diced
• 1 small green bell pepper, diced
• 6 cloves garlic, minced
• 1 teaspoon salt, or to taste
• 1 teaspoon dried oregano
• ½ teaspoon dried thyme
• ½ teaspoon paprika
• ⅛ teaspoon ground cayenne red pepper, or to taste
• freshly ground black pepper, to taste
• 6 to 7 cups low sodium vegetable broth, you can also use chicken broth
• 2 bay leaves
• ½ cup chopped fresh parsley, plus more for garnish
• ¼ cup chopped fresh green onions, plus more for garnish
• 1 ½ cups long grain brown rice or white rice, cooked according to the directions on the package