Vegetables are always a matter of preference when it comes to a topping option. The great thing is that even vegetarians can enjoy a slice of pizza. The type of vegetable you use is all a matter of taste. The following are the most common:

• Mushrooms

• Black Olives

• Green Olives

• Bell Pepper

• Onion

• Tomato

• Pineapple (even though it is a fruit)

Some less popular options but seen more and more are as follows:

• Asparagus

• Spinach

• Squash

• Jalepeno Pepper

• Bannana Pepper

• Cucumber

• Okra

• Artichoke

Many times your so-called "Gourmet Pizza" will include those less used options.