1. Preheat oven to 425°.
2. Heat an ovenproof skillet over medium-high heat. Add 1 tablespoon oil; swirl to coat. Sprinkle pork with 1/4 teaspoon salt and pepper. Add pork to pan; cook 4 minutes or until browned. Turn pork over; place pan in oven. Bake at 425° for 12 minutes or until a thermometer registers 145° or until desired degree of doneness. Remove pork from pan. Let stand 10 minutes; cut pork across the grain into thin slices.
3. Combine remaining 1 tablespoon oil, cabbage, and next 4 ingredients (through red pepper) in a bowl. Combine juice and avocado in a bowl. Add avocado mixture to cabbage mixture; sprinkle with remaining 1/4 teaspoon salt. Toss gently to combine.
4. Heat tortillas according to package directions. Place 2 tortillas on each of 4 plates; divide pork evenly among tortillas. Top tacos evenly with cabbage mixture.
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