Preheat oven to 400F. Lightly grease a 9x13 baking dish and place peppers in the bottom. Set aside.
In a medium skillet over medium-high heat, saute shallot in butter until just tender. Add rice to skillet and stir 1-2 minutes until risotto is lightly toasted. Add garlic and saute 1 additional minute until fragrant. Pour wine into pan and cook until wine is reduced in half.
Reduce heat to medium-low and begin adding hot chicken broth to rice, a little bit at a time, waiting until liquid is evaporated before adding more broth.
Continue adding broth in small amounts 15-20 minutes until rice is tender and creamy. Stir in cream, spinach, and artichoke hearts until spinach is wilted. Season risotto with salt and pepper to taste.
Divide risotto equally between sweet peppers and top with cheeses. Bake peppers at 400F 25-30 minutes until cheese is browned and peppers are tender.
Remove sweet peppers from oven and top with fresh basil. Serve sweet peppers warm and enjoy!