- 1 pound ground beef
- ½ pound button, baby bella, or cremini mushrooms, cleaned*
- ½ a large onion
- Olive oil for pan
- 1 teaspoon kosher salt and ¼ teaspoon freshly ground pepper
- ¼ teaspoon garlic powder, optional
*Even though conventional wisdom says not to wash mushrooms, I do. They are often quite dirty and sautéing them will cook out all the moisture anyway.