Do you have any suggestion for quick and economic breakfast ingredients

Lea F.
Eggs and cheeses are best.I usually do some sandwiches.Which are made with healthier breads like whole grain or whole wheat.And the fillings i use are usually like that: eggs,cheeses,any kinds of greens,any kind of meat(u can use ham or salami e.g.),tomatos,olives
I know u probably saying “How can u fit all these things in a sandwich?” but u can always wrap your sandwiches u know.