Low Carb Jambalaya

INGREDIENTS

• 1 tablespoon olive oil
• 1 tablespoon butter
• 1 large onion, diced
• 2 andouille sausage, halved lengthwise and cut into 1/4-inch half-moons
• 6 cloves garlic, finely chopped
• 1 (14 ounce) can crushed tomatoes
• 3 green bell peppers, seeded and diced
• 2 zucchinis, diced
• 2 tablespoons Cajun seasoning
• 1 teaspoon hot sauce, or to taste
• 1 cup chicken broth
• 1 pound chicken breast, cooked, cooled, and chopped
• 1 pound cooked, peeled, and deveined shrimp