From the top of Mt. Shavano
, it's under a mile to Tabeguache Peak. Leave the summit, heading down clear, rocky trail toward yet another clear summit. Lose about 600 vertical, reaching a saddle at 13,500 ft. Angle left up 500 ft of rocky, unclear, class 2 trail to reach the top of Tabeguache Peak. From here, the only realistic escape is the path from whence you came, so make sure the weather is decent before heading to this peak.
From the Tabeguache summit, turn around and do it all backwards. There's a lot of gain on this trail, so expect the return up Shavano to be a bit brutal.
There's not much here other than rocks, marmots, and pika.