Veg Burger Advice, Am i missing something? I used to eat burger at home rather than buying from MCDonalds. But i feels the taste can be improved. I am mentioning my method now. Please help me improve it as the Burgers are not crunchy. 


I used to buy Empty Burgers Buns from Market (Have seeds on top)
Buy Ready made Patty from Reliance Fresh store
Buy Amul Cheese Slice from Store.


Chop onions in slices
Chop Cucumbers in slices
Chop Tomoato in slices

Now Cut the burger in half. Add a tomato ketchup sauce layer, Mayonaise, Salt, Sometimes (Pudina/Mint Ready Made sauce) and patty and slice, onions, tomato, etc 

Then put in on Frying PAN, add some oil, put the burger and try to press it. The change the burger side and done. 

I tried putting in Microwave also (But the burgers become so soft and start to break while eating)

Question:
Is my cooking method wrong, or i am setting microwave setting wrong (what will be the temp, microwave/grill) etc

I prefer to avoid long tasks.
To get crunchy buns, you can toast them in an oven beforehand. Here is how I do it:
Take the bun out of the package, slice it open and put it in a preheated oven (180C / 350F) for about 5-8 minutes. Keep an eye on them!

Depending on the brand and model, you could also put the bun halves in a toaster.

Then assemble your burger however you like. I would not fry it afterwards.