How do I set the initial window size as the minimum window size in tkinter?

My understanding is that after initializing all frames and widgets in the __init__ method, the tkinter window resizes to fit all these components.

I would like to set the window's initialized size to be its minimum size. I want to be able to maximize and scale the window larger, but I never want the window to be small enough to start hiding widgets.

How do I accomplish this?