Sweet Potato Crust Egg Bake
Sweet Potato Crust Egg Bake starts with a soft layer of mashed sweet potatoes, then adds eggs, cottage cheese, spinach, cherry tomatoes, and feta. It’s a savory breakfast bake made in one square pan, with a little extra oven time for the potato base before the egg filling goes in.
Why This Sweet Potato Crust Egg Bake Has a Pre-Baked Base
Steamed sweet potatoes are easy to mash and press into a baking dish. They also hold more moisture than a traditional flour-based crust.
Giving the mashed potato layer its own time in the oven helps dry the surface before the egg mixture is added. The finished base is meant to be soft and tender, not flaky or crunchy.
Ingredients That Matter
For the crust, choose sweet potatoes that are fully tender before mashing. Drain them well after steaming, and measure the cooked potato so the layer doesn’t become unnecessarily thick.
The cottage cheese adds dairy richness to the eggs, while feta gives the filling a saltier finish. Cook the spinach briefly and dry the cut tomatoes so they contribute less loose liquid during baking.
Press and Pre-Bake the Sweet Potato Crust
Spread the cooked, drained sweet potato evenly into the lined pan. Press gently with the back of a spoon or spatula, especially near the corners, so the layer has a fairly even thickness.
Pre-bake until the surface looks less wet and starts to color around the edges. Don’t expect the mashed potatoes to turn into a pastry crust.
Add the Cottage Cheese Egg Filling
Wilt the spinach in a skillet, then remove excess liquid. Whisk the eggs with cottage cheese and seasonings. Small bits of cottage cheese are fine and don’t need to be blended away.
Spread the spinach and halved tomatoes over the sweet potato base, pour in the eggs, and finish with feta. Keep the ingredients distributed evenly so the filling can bake at a similar rate throughout the pan.
Bake Until the Center Is Set
Return the filled pan to the oven at 375°F. The surface may puff slightly as the eggs cook, then settle during resting.
Check the center with a thermometer rather than relying only on the browned edges. After baking, wait about 10 minutes before cutting so the egg layer has time to settle.
Tips for a Better Sweet Potato Base
Drain the potatoes well after steaming. A thick, watery crust makes it harder to keep the egg and potato layers separate.
Pre-bake the crust before adding eggs, and cook the spinach briefly to evaporate its water. Pat the halved tomatoes dry as well.
Use an 8-inch square pan to keep the potato and egg layers at a manageable depth.
Serving and Leftovers
Cut the bake into six squares after resting. It works for breakfast or brunch and can be served warm without an extra sauce or topping.
A finished bake can be made ahead: refrigerate the cooked portions within two hours and keep covered for up to 3–4 days. Reheat a portion until its center reaches 165°F. This is not a recommendation to leave an assembled raw egg casserole overnight.
More Ways to Cook with Sweet Potatoes
For another way to combine sweet potatoes with cottage cheese, see our Hot Honey Beef & Cottage Cheese Sweet Potato Boats. The potatoes are baked as halves instead of pressed into a crust.
If you enjoy a sliceable savory bake with spinach and cheese, try our Cheesy Spinach Ricotta Savory Ring. It uses a different crust and filling.
Frequently Asked Questions
Does a sweet potato crust need to be pre-baked?
For this mashed sweet potato version, yes. Pre-baking helps dry the surface before the wet egg mixture is added, although the base stays soft instead of turning into pastry.
Can I use sliced sweet potatoes instead of mashed?
Sliced potatoes can work in other sweet potato quiche recipes, but they require overlapping thin slices and a different pre-bake. This recipe uses cooked, mashed sweet potato, so the methods are not interchangeable.
Can I make this egg bake ahead of time?
Yes. Bake it completely, refrigerate within two hours, and store covered portions for up to 3–4 days. Reheat a portion to 165°F. Do not treat the raw assembled egg filling as a tested make-ahead variation.
How do I know when the egg filling is cooked?
The middle should be set, not liquid, and measure 165°F for this casserole. Give it a 10-minute rest before cutting.
Serving Ideas
- Cut into six squares for breakfast or brunch.
- Cook the whole bake ahead, refrigerate covered portions, and reheat individual squares.
Sweet Potato Crust Egg Bake
Sweet Potato Crust Egg Bake uses a soft pre-baked mashed sweet potato base topped with cottage cheese eggs, spinach, tomatoes, and feta. Includes practical tips to reduce moisture and reheat leftovers.
- Crust pre-bake
- 425°F
- Egg-bake oven
- 375°F
- Cooked egg casserole center and reheated leftovers
- 165°F
Ingredients
Sweet potato crust
- 2 small (350 g cooked, peeled) sweet potatoes, peeled and cut into roughly 1-inch chunks; weigh 350 g after steaming
- 2 teaspoons olive oil
- 1/4 teaspoon table salt
Egg filling
- 6 large eggs
- 1/2 cup (113 g) full-fat cottage cheese
- 2 packed cups (about 60 g) fresh baby spinach, roughly chopped
- 1/2 cup (about 75 g) cherry tomatoes, halved and patted dry
- 1/4 cup (about 38 g) crumbled feta cheese
- 1 teaspoon olive oil
- 1/2 teaspoon garlic powder
- 1/4 teaspoon table salt
- 1/4 teaspoon black pepper
Instructions
- Steam the sweet potatoes
Peel and cut the sweet potatoes into roughly 1-inch chunks. Steam for 12–15 minutes, until fork-tender. Drain well and leave uncovered for about 5 minutes so moisture evaporates. Measure 350 g of cooked potato.
- Prepare the pan and crust
Heat the oven to 425°F. Line the bottom of an 8 × 8-inch metal baking pan with parchment, leaving overhang. Mash the measured sweet potatoes until mostly smooth, then stir in 2 teaspoons olive oil and ¼ teaspoon salt. Press in an even layer across the pan bottom.
- Pre-bake the crust
Bake the pressed sweet potato for about 20–25 minutes, until its surface appears drier and the edges begin to brown lightly. The base remains soft rather than crisp like pastry.
- Dry the vegetables
While the crust bakes, warm 1 teaspoon olive oil in a skillet over medium heat. Cook the spinach for 1–2 minutes until wilted, letting any liquid evaporate; drain or press out excess moisture. Pat the cut sides of the cherry tomatoes dry.
- Whisk the filling
Reduce oven temperature to 375°F. Whisk six eggs with cottage cheese, garlic powder, ¼ teaspoon salt, and black pepper until evenly combined. Small cottage cheese curds are fine.
- Assemble the egg bake
Scatter the drained spinach and halved tomatoes over the sweet potato base. Pour the eggs and cottage cheese mixture evenly on top; finish with crumbled feta.
- Bake and check doneness
Bake for approximately 30–35 minutes, checking early if the egg layer is shallow. The center should be set, not liquid, and reach 165°F on a thermometer, using a conservative casserole safety target.
- Rest and cut
Rest for 10 minutes before lifting out and cutting into six squares. Refrigerate leftovers promptly, use within 3–4 days, and reheat cooked portions to 165°F.
Storage
- Refrigerate cooked portions: Cool and refrigerate within two hours; keep covered for up to 3–4 days. (4 days)
Reheating
- Oven or microwave: Heat a cooked, refrigerated square until its center reaches 165°F. at 165°F
Related Recipes
Mediterranean Baked Cod with Tomatoes, Olives & Feta
Bake tender cod with cherry tomatoes, olives, garlic, oregano, and feta in one dish. An easy Mediterranean dinner with helpful fish-cooking tips.
High Protein Cottage Cheese Chicken Bake with Broccoli
Make this creamy high protein chicken bake with shredded chicken, broccoli, cottage cheese, Parmesan, and mozzarella. It bakes at 375°F in 25–30 minutes.
Cheesy Spinach Ricotta Savory Ring
Bake this spinach ricotta savory ring in a cheese-lined pan at 350°F. Rest it for 5 minutes, then turn it out and slice it warm.