Heat oil in large skillet over medium-high heat. Saute jalapeno and garlic, about 1 minute.
Stir tomatoes, black beans, corn, quinoa and chicken broth into skillet. season with red pepper flakes chili powder, cumin, salt and black pepper. Bring to boil, cover skillet, reduce heat to low and simmer until quinoa is tender and liquid is mostly absorbed, about 20 minutes. Stir in avocado, lime juice and cilantro into quinoa mixture and serve.
Note: I use Fire-roasted tomatoes for added flavor...