I have a great idea.

I have a great idea, I can work in your restaurant, but I only serve one dish or item from the menu. My item could be a special for the days I work in the kitchen and there are other options. I want to introduce the tortilla de patatas española clásica with hummus, a salad and bread. The cost is cheap, chickpeas, bread, eggs, onions, potatoes and salad. For how much my breakfast could be sold?. We can start with the price of an english breakfast, or cheaper or more expensive. At that price would my breakfast sell?. Thank you.