Peel and dice a mango. Cut the Roma tomato in half and remove the seeds then dice it. Cut the jalapeno in have, remove the seeds and dice as well. Dice the onions and chop the cilantro. Mix together in a bowl and add the lime juice and salt and pepper to taste. Mix well.
For the cabbage slaw:
Finely shred or slice the red cabbage. Season with the lime juice, canola oil, salt and pepper. Let sit at least ten minutes before serving.
For the tacos:
Char the tortillas on top of your gas stove burner or alternatively you can grill them.
Slice the Halloumi cheese into 1/2" thick slice, about 1" wide. Spray the grill pan with cooking oil spray and grill the cheese about 2 minutes per side.
Assemble the tacos by taking two tortillas and putting some red cabbage on the bottom, then adding the Halloumi cheese, toping it with mango salsa, avocado and finishing it off with the creamy tomatillo and jalapeno ranch.