Absolutely yes

Maybe with a couple fried eggs on top.

Whenever I go to a steakhouse for dinner, I'll get the bigger cut of meat. Then, take home the leftovers and make steak & eggs for breakfast.

Would

If you cut the potato into hash browns, toast and butter the bread, eat a beef patty, and scramble some eggs it's breakfast.
Put the beef patty on the bun with a slice of cheese and French fry the potatoes you have lunch.
If you mash the potatoes, make the beef patty bigger with gravy yo have dinner.

The main ingredient for all the meals being meat and potatoes, but served z different way to be called a different meal.