Cook pasta according to package directions and set aside.
Blend sauce ingredients until smooth and warm.
While sauce is blending, sauté the bell pepper and onion in water over medium heat for about 3 minutes.
Turn off heat and mix in beans, chili powder, cumin, tomatoes, and kale.
Combine all ingredients together: pasta + sauce + sauté mixture.
Place everything in a 9x13 baking dish. Bake for 30 minutes.