Chop 1 cup onion, 3/4 cup bell pepper, and 1/2 cup celery. Peel and press or mince garlic. Cube meat.
Mix seasoning in small bowl. Dredge meat thru seasoning to coat.
In Dutch oven, warm avocado oil over medium heat. Sauté meat, onion, bell pepper, celery, and garlic. Add remaining seasoning, broth, tomatoes, and pepper flakes.
Increase heat and bring to a boil. Cook uncovered for about 45 minutes, stirring often, until broth thickens and meat is tender. Add salt and pepper, to taste.
In the meantime, prepare garnish. Cut each tortilla into 10 wedges. Warm 2 tablespoons oil in large frying pan, add tortilla wedges and fry until golden. Transfer to paper towel to drain.
Chop fresh cilantro. Drain canned corn. Peel avocado, remove pit, and cube. Garnish each serving as pictured.