To make a Pav Bhaji Masala Roti Sandwich, start by heating the Pav Bhaji in a pan until warm. Spread butter on one side of each roti. Place one roti, butter side down, in a heated skillet and spread a layer of Pav Bhaji on top. If you like, add chopped vegetables for extra flavor. Top with the second roti, butter side up. Cook until the bottom roti is golden brown, then flip and cook the other side until both sides are golden. Finally, remove from the skillet and cut into halves for serving.

Yes, the Pav Bhaji Masala Roti Sandwich is suitable for vegetarians as it primarily consists of roti, Pav Bhaji, and optional vegetables. Just ensure that the Pav Bhaji you use is made without any meat or animal products.

If you don't have roti, you can substitute it with other flatbreads like naan, tortillas, or even pita bread. Each option will give a slightly different texture and flavor, but they will all work well with the Pav Bhaji filling.

To store leftover Pav Bhaji Masala Roti Sandwich, wrap it tightly in plastic wrap or aluminum foil and place it in the refrigerator. It can be stored for up to 2 days. When ready to eat, reheat it in a skillet or microwave until warmed through.

Pav Bhaji Masala Roti Sandwich pairs well with a variety of side dishes. You can serve it with a side of crispy potato chips, a fresh salad, or even a tangy yogurt dip. For a more traditional touch, consider serving it with some pickles or chutney.