Crumble sausage into a nonstick skillet over medium heat. Brown and cook to 165°F, then transfer to a plate.
Add the diced potato and a splash of water to the same skillet. Cover for 7–10 minutes until almost tender. Uncover and cook until the edges brown, adding a little water if needed.
Return sausage to the pan, add spinach and toss just until wilted.
Approximate nutrition per serving, calculated from ingredient weights using USDA FoodData Central and comparable ingredients. Brands, optional toppings and substitutions can change the result.Storage: Refrigerate perishable portions in shallow, covered containers within 2 hours, or within 1 hour above 90°F. Keep the refrigerator at 40°F or below and use cooked leftovers within 3–4 days. If reheating cooked leftovers, heat them to 165°F throughout.