Finely chop or grate broccoli.
Heat oil in a pan, add onions, coarsely crushed garlic and saute for 2-3 minutes until broccoli is soft. Add salt to taste.
Take out the broccoli and onion mix in a bowl. Let it cool a little. Add crumbled paneer to it, black pepper and chili flakes to it and mix well.
Take two tortillas, on one side spread little butter, flip it and put spread some pizza sauce or tomato ketchup. Spread the cheese and broccoli paneer mix.
Cover with the other tortilla. You can spread sauce on the tortilla or cover it just like that. Spread butter on the upper side.
Make quesadilla in the quesadilla maker or on a grill pan or use your regular griddle to make it.
Cook on from both the side till the cheese melts and the quesadilla are crunchy from both the sides.
Cut into four triangles using a pizza cutter and serve with tomato ketchup or sour cream or the dip of your choice.