Slice beef into bite sized chunks, the sprinkle with salt and pepper.
Add beef, garlic, and olive oil to a stock pot and sauté on medium. Once meat it browned, add bacon pieces.
(While bacon is cooking, slice potatoes into medium sized chunks).
Once bacon is cooked, if you find there to be excess oil in the pan, you can drain. This is optional, and totally based on preference.
Add water, potatoes, pearl onions (if using), spinach leaves, ground sage, and salt and pepper. Bring to a boil, then reduce to a simmer. Continue simmering until potatoes are tender, stirring only occasionally.
Remove from heat and serve immediately, adding more salt and pepper to taste! Enjoy!