It is as simple as opening a can that can be found at your local dollar store. Choose a variety!
Buy a bag of lettuce for about $2.00 to $3.00 (US currency). To keep it simple, purchase some shredded cheese and one or two other toppings. Instead of buying such fattening and expensive dressings, buy a bottle of oil and a bottle of vinegar. Such lasts forever and you only need two capfuls per serving.
All you have to do is take a trip to your local deli! You have such a variety to choose from! Salami, pepperoni, bologna, etc. While at the grocery store, do not forget to buy a loaf of bread!