Dip chicken in egg then spiced flour. Dip again in egg and flour.
Fry on high heat till golden and crispy making sure not to dry out chicken.
Dice avo, toss with lemon juice and mix with tomatoes and onions.
In casserole dish spoon avo mixture in.
Mix garlic, sugar, pepper and salt in sour cream.
Spoon on 2/3 of sour cream on.
Dollop remainder sourcream.
Break tortillas into small pieces.
Place over and lastly sprinkle on cheese.
Bake in oven till cheese melted amd tortillas crispy.