Mix juice and zest of one lime, 2 tsp of olive oil, garlic, salt, 2 Tbsp of chopped cilantro, 1/2 tsp of salt and 1 Tbsp of taco seasoning together in the Instant Pot. Add in Flank Steak and let it marinate together for a few minutes, coating both sides of the steak.
After a couple of minutes, add the can of tomatoes with green chilies to the Instant Pot, place the cover on top and cook on manual, high pressure for 12 minutes. Once cook time is over, let meat sit for five minutes before carefully switching to quick release. Let steam escape before opening your pot.
While meat is cooking, put together the coleslaw by mixing together the coleslaw mix, red onion, jalapeno, 2 Tbsp of chopped cilantro, juice from one lime, maple syrup or honey, and a sprinkle of salt. Mix well and let flavors sit. Sprinkle on some chili powder, if desired.
Warm tortillas on a grill pan, then serve tacos with yogurt, meat, coleslaw and top with avocado and some extra cilantro. Enjoy!