Preheat oven to 475 F. Line a baking sheet with parchment paper.
Steam broccoli pieces for about 5-10 minutes or until fork tender. Then strain and add into a food processor. Pulse until the broccoli is all cut up into tiny pieces. Add the pulsed broccoli into a nut milk bag or dish towel and ring out all extra moisture.
After ringing the moisture out of the broccoli, it should yield about 2 cups.
Peel and microwave the potatoes until cooked through (about 8 minutes per potato). I microwaved two at a time.
Use a handheld box grater or grater food processor attachment for the potatoes. Grate all of them.
Add the broccoli and potatoes into a mixing bowl. Add garlic, salt and pepper and mix to combine well.
Start forming into hash brown patties no more than 1/2 inch thick. Be sure not to make them too thin. Line them up on the baking sheet. Mine yielded about 15 patties.
Bake for 40 minutes flipping them halfway through.