In a large sauce pot, cook the cubed chicken and olive oil on medium heat until it is browned. Add the broth, cumin, and rice until boiling. Cover and let simmer on low for 20 minutes. Stir in corn, enchilada sauce, salsa, cilantro, and lime juice. Add cheese right before serving.
Top with extra cheese, sour cream, avocados and tortilla strips.
To make the tortilla strips, cut the corn tortillas into 1/2-1" slices. Coat a frying pan with cooking spray, and add a layer of the tortilla slices. Spray the top of them with cooking spray, and turn them as they start to brown.