Paleo Jambalaya with Cauliflower Rice

Name: Paleo Jambalaya with Cauliflower Rice
Ingredients: 1 Tbsp olive oil; 12oz kielbasa or andouille sausage, sliced on the diagonal; 1 small onion, diced (about 1 heaping cup); 1 bell pepper, diced (about 1 heaping cup; 2–3 stalks celery, diced; 2–3 cloves garlic, minced; 1 Tbsp Cajun seasoning; 1 (14oz) can diced tomatoes (I like fire-roasted), undrained (about 1 3/4 cups); 1/2 cup-3/4 cup vegetable or chicken broth; 1 (12oz) package cauliflower rice (frozen or fresh); 8 oz. shrimp; 2 green onions, sliced; 2–3 Tbsp minced cilantro or parsley (optional); salt and pepper, to taste.