Heat oven to 200C/180C fan/gas 6.
In a roasting tin, season the frozen
vegetables and toss with the Mexican
seasoning, then roast in the oven for
15 mins, until hot. Meanwhile, mix the
avocado, lime juice and tomatoes with
some seasoning, then set aside.
Put the tortillas on a baking sheet and
cook above the vegetables for the final
5 mins of cooking time until crisp.
Transfer the crispy tortillas to plates,
scatter with rocket and top with the
roasted vegetables. Add some of the
avocado salsa and sprinkle over the feta.