Heat the oil in a pan on medium heat. Once hot add cumin seeds and let them sizzle.
Then add sesame seeds and let them pop.
Now add ginger paste and green chilies. Saute for 30-40 seconds
Now add coriander leaves and mint leaves. Saute for 30 seconds.
Lower the heat and add turmeric powder, red chili powder and anardana powder. Immediately mix it and saute for 10-15 seconds. If it starts burning, add splash of water.
Right away add cooked peas and potatoes along with salt. Mix well and cook for 2-3 minutes.
Now add garam masala powder and mix.
Lastly add lemon juice. Alternately you can add ½ teaspoon of amchur powder.
Making The Dough:
Take whole wheat flour, salt, baking powder and ajwain in a bowl. Mix.
Add oil. Start rubbing between your fingers and thumb and keep mixing till everything is incorporated well. You will have very crumbly mixture and if you press little amount together, it may form a ball.
Now start adding little water at a time and make smooth dough. Make sure that dough should not be too soft like paratha/roti dough and it should not be stiff. It should be in between consistency.
Cover it and let it rest for 15 minutes.
After 15 minutes, knead it again for 2 minutes to make it smooth.
Divide it into 5 equal portions and make smooth balls, flatten it out between your palm one by one.
Shaping And Baking:
Before you start shaping and filling, line a baking dish or tray with aluminium foil. Or lightly spray or grease the tray.
Also pre-heat the oven to 375 degrees F or 190 degrees C for at least 10 minutes.
Work with one disc at a time. Roll into 6-7 inch diameter circle. It should be of medium thickness (not too thick, not too thin).
Using knife, cut into half.
Now work with one half circle at a time. Apply the water around the edges using brush or fingertips.
And make cone shape by folding and overlapping slightly. Press it and seal that part properly. Since we applied water it will stick easily.
Put the two three spoonful of stuffing in it. Do not over-stuff.
Apply the water on the inside edges of the cone. And press it to seal properly.
Repeat the same shaping process for rest of the samosa.
Arrange them on prepared tray and keep it covered with kitchen towel so they do not dry out.
Now brush them with oil generously. Flip them brush the other side as well.
Bake into pre-heated oven for 15 minutes. Then remove the tray flip them and again bake for 10-15 minutes. All together you will need to bake them 25-30 minutes by turning halfway through.
Let it cool for 5 minutes before serving.
Notes
The taste and texture of the crust cannot be compared with fried version.
The texture is nice flaky and crispy but not the same as fried one.
Of course the fried one tastes better. Obviously these are healthy, so you cannot get the same result.
If you use all purpose flour then you will get little close texture and taste to the fried one.