Preheat the oven to 350 degrees.
In a medium saucepan over medium heat brown ground beef and drain.
Grease the 8x8 inch baking pan.
Put browned ground beef in the baking pan and spread it out evenly.
Sprinkle onion flakes and the seasoned salt over the ground beef.
Partially drain a can of french cut green beans. You want a little liquid to help prevent the casserole from sticking onto the baking pan. Spread the green beans evenly over the ground beef.
Next spread the can of cream of potato soup over the green beans. It's OK if it's not spread perfectly. It will spread more as it cooks.
Place tater tots on top of the soup laying them in neat rows.
Put the casserole in the oven and bake uncovered for 45 minutes.
Serve immediately.