Cover & let it cook for 15-20 minutes on the low flame.
8)Wash lettuce leaves & chop finely.
9)Roast Tostada shells in the oven for 1-2 minutes on each side.
:- Be very careful, as tostada shells burn quickly. Just roast them little brown on both side in your small toaster oven.
For making Tostada-Taco:
1)Arrange onions, lettuce, tomatoes, salsa, cheese, bell peppers in bowls in front of you.
Take one tostada shell. Spread large spoon full of hot beans over tostada.
4)Sprinkle salsa, green bell peppers, tomatoes and onions.
5)Finally, sprinkle lettuce & cheese.
For making Tostada shells:
1)Prepare dough out of maize flour(makki atta).
2)Roll makki roti (not too thin nor too thick).
3)On griddle, roast makki roti on two sides, until it becomes hard and crisp (do this using cloth and press roti with cloth side by side, just like making khakhra)
Prepare 10 makki rotis like this and your tostada shells are ready.
:- Please prepare shells as hard as possible.
For making Salsa ( 1 cup):
1)Boil 2 tomatoes in hot water.