Poke a few holes in each sweet potato, drizzle with 1 tablespoon of the olive oil and wrap with aluminum foil. Place directly on rack in the oven and roast for about 1 hour until fork tender. (Alternatively, you could use a microwave to cook the sweet potatoes and cut down on cooking time substantially)
Add the chickpeas, 1/2 tablespoon olive oil, salt, pepper and 1 tablespoon of the cajun seasoning to a small bowl. Toss to combine then spread out on a parchment lined baking sheet. Place in the oven towards the end of the cooking time for the potatoes and roast for 10-12 minutes, until golden brown and crispy.
Add the remaining 1 tablespoon of olive oil to a skillet over medium-high heat. Toss the shrimp with the remainder of the cajun seasoning, salt and pepper to taste. Once hot, add to the skillet and cook until pink on both sides, about 5 minutes total.
Prepare the caesar salad by placing the greens, pita chips, parmesan and dressing in a large bowl and tossing until well combined.
Assemble the sweet potatoes by slicing down the middle of the cooked potato and stuffing with the caesar salad then topping with the cooked shrimp and chickpeas.