Place garlic, white onion, jalapeno, bell pepper in food processor and pulse 3-4 times or until veggies are chopped. You can chop by hand also, but using a processor saves you a TON of time!
Heat olive oil in a large skillet. Place diced chicken in skillet and sprinkle with salt and pepper. Cook until no longer pink, about 7-9 minutes.
Add sliced sausage to skillet and cook until fragrant (about 2 minutes). You can use uncooked sausage, and if you do just add it the same time you add the diced chicken.
Add the zucchini and other chopped veggies from the food processor. Add optional cajun spice mixture, if usingCook for 2 minutes or until fragrant. SLOW COOKER OPTION: Place all ingredients from skillet in slow cooker, add tomatoes, 1 cup chicken broth. Cook on high for 4 hours.20 minutes before serving, cook the rice in the remainder 3 cups of chicken broth. Serve chicken mixture over rice. STOVE OPTION: Add tomatoes, chicken broth and rice to skillet and bring to a boil over high heat. Reduce heat and cover to let simmer for 20-25 minutes or until rice is tender.