Mashed Potato Green Bean Casserole
- Prep time: 20 mins
- Total time: 50 mins
- Servings: 8-10
- Calories: 397
Ingredients
- 3 lb. mashed potato
- 3 lb. Yukon gold potatoes
- butter
- milk or cream
OR
- 48 oz. store-bought mash
- salt and pepper to taste
- 4 cups green beans (fresh or frozen are perfect, canned are okay but won't be firm)
- 1 can cream of mushroom soup (284 mL / 10.5 fl oz)
- ⅓ cup milk
- 1 tsp soy sauce
- 1½ cup cheddar cheese, shredded
- 6 oz. crispy onions (1 can if using French's)
- butter or cooking spray (to grease pan)
Directions
- Preheat oven to 350°F.
- Lightly grease a baking dish (if making the full recipe, you'll want 9"x13") and set aside.
-
Making your own mashed potatoes?
- Put a large pot of water on to boil.
- Peel potatoes if desired, and cut large potatoes in half. (Small ones can stay whole; this helps keep the potatoes from becoming glue-y when mashed.)
- Boil potatoes for up to 30 minutes, or until they offer no resistance when pierced. (Prep the bean topping in the meantime.)
- Strain potatoes. (Consider saving the water to make soup! Potato water has lots of vitamins and the starch lends a nice texture.)
- Season potatoes with salt and pepper. Mash, mixing in butter and milk, until desired consistency is reached.
- If using fresh or frozen green beans, cook them first (steaming them over the boiling potatoes works nicely).
- Make the bean topping by mixing green beans, soup, milk, soy sauce, half the cheese, and half the onions.
- Add mashed potatoes to pan and smooth out to make an even layer. Pour green bean mix on top, then top with remaining cheese and crispy onions.
- Bake for 30 minutes.
Leftovers reheat nicely in the microwave, but throwing them back in the oven for 10 minutes is even better!