Russian service in a restaurant is a style of food service where food is prepared and plated in the kitchen, and then brought to the table by a server.
The cheapest food to make for a party depends on the local market prices and availability of ingredients, but options such as pasta dishes, rice dishes, or sandwiches can be cost-effective.
To feed a lot of people at a party for cheap, you can consider serving inexpensive foods such as pasta, rice dishes, chili, or soups, and offer a potluck-style meal where guests…