Preheat oven to 350°F. Heat oil in large ovenproof skillet set over medium heat; cook sausage for 3 to 5 minutes or until crispy around edges.
Stir in red peppers, shallots, Cajun seasoning, half of the pepper, and salt. Cook for 3 to 5 minutes or until vegetables are slightly softened.
Stir in arborio rice; cook for about 2 minutes or until well coated. Stir in sherry. Bring to boil; stir in 3 cups broth. Cover and transfer to oven.
Bake for about 20 minutes or until most of the liquid is absorbed.
Stir in kale, lemon zest and remaining broth; stir vigorously for 1 minute. Cover and return to oven; cook for about 5 minutes or until rice is tender and kale is wilted.
Stir in half of the cheese. Divide risotto among 4 bowls; garnish with remaining cheese and sprinkle with remaining pepper.
This autumn-inspired risotto is started on the stovetop, then it bakes in the oven for easy preparation.
For extra rich risotto, stir in 1 to 2 tbsp butter before serving. Add pinch of fresh grated nutmeg to risotto, if desired.