In a pan add 1 tsp of butter and add the frozen corn. If using fresh corn, cook this well and then take out the corn kernels and then add.
Saute for a minute and add add ½ cup finely chopped spinach
Saute for a minute and add salt.
Now add 3 tbsp of finely chopped capsicum
Saute for a minute.
Add red chili flakes, pepper powder, oregano flakes and mix well.
Keep this aside.
Add 1 tsp butter to the pan and add 2 tsp plain flour |maida. You can add jowar flour also.
Saute in low flame for a minute.
Now add ½ cup milk, you can add raw milk or boiled and cooled milk. Oat milk can also be added.
Mix well without lumps
Let this thicken, cook on a low flame.
Now add the corn spinach mixture.
Mix well and switch off
Add ¼ cup grated cheese
Filling is ready for the sandwich.
Add butter on a tawa and place a bread on it.
Spread the corn cheese mixture.
Cover with another slice.
Cook on both sides
Take out, cut and serve.