Ranchero Roll-Ups
["1 onion, cut into wedges", "2 Tbsp. oil", "1 (14 1/2 oz.) can Mexican-style stewed tomatoes", "1/2 tsp. oregano, crushed", "1 1/2 c. shredded cooked chicken", "1 (4 oz.) can whole green chiles, cut into strips", "4 flour tortillas", "2 tsp. red wine vinegar"]
["In large skillet, cook onion in 1 tablespoon oil until tender-crisp.", "Drain tomatoes, reserving liquid.", "Add liquid and oregano to skillet; cook over high heat 3 minutes, stirring frequently.", "Stir in meat and chiles; remove from heat.", "Spoon chicken mixture into each tortilla; roll up.", "Add remaining tablespoon oil to skillet and lightly brown roll-ups.", "Chop tomatoes; stir in vinegar.", "Pour over roll-ups; cover and cook over low heat for 3 minutes.", "Makes 4 servings."]
["onion", "oil", "tomatoes", "oregano", "chicken", "green chiles", "flour tortillas", "red wine vinegar"]