
By Food52
One-Pan Lentil Gratin With Sweet Potatoes & Mustard-Chèvre Crumbs
Need a warm and cozy pick-me-up at the end of a long day? This lentil gratin strewn with sweet potatoes, tomatoes, and kale and crowned with mustardy chèvre crumbs is just the ticket. The entire dish comes together in one pan—not only a boon for assembly and cleanup, but also for building bold, savory flavors from the bottom up. Even better, by baking the lentils in a hot oven (uncovered) versus simmering them on the stovetop, the flavors get ultra-concentrated and the lentils cook gently and evenly, with no worry about mushy results. The crispy, cheesy crumbs amp up the flavors and textures even more. The finished dish is hearty and satisfying, with an effort-to-reward ratio that’s pretty unbeatable no matter the night or occasion. Using this recipe as a template, pretty much everything is customizable. Swap chunks of carrots, parsnips, or winter squash for the sweet potatoes. Reach for other sturdy greens, such as Swiss chard, mustard greens, or collards, instead of kale. Feel free to play around with the topping as well. Torn mozzarella, crumbled feta, or shredded aged cheddar are all swell stand-ins for the chèvre, and finely chopped nuts make a nice addition to the panko breadcrumbs. If you don’t have French lentils, an equal amount of green or brown lentils can be substituted. Since different varieties of lentils have different cooking times, just monitor their doneness in the oven and add a bit more liquid, if needed, until they’re cooked through.
Updated at: Tue, 26 Aug 2025 20:22:24 GMT
Nutrition balance score
Great
Glycemic Index
44
Low
Glycemic Load
30
High
Nutrition per serving
Calories637.6 kcal (32%)
Total Fat29.7 g (42%)
Carbs67.6 g (26%)
Sugars9 g (10%)
Protein29.2 g (58%)
Sodium585.7 mg (29%)
Fiber13.6 g (49%)
% Daily Values based on a 2,000 calorie diet
Ingredients
4 servings

6 tablespoonolive oil
divided

1Vidalia onion
large, or yellow, thinly sliced

0.75 poundsweet potato
large, chopped into 3/4-inch pieces

2garlic cloves
thinly sliced or finely chopped

¼ teaspoonred pepper flakes
or to taste

kosher salt

freshly ground pepper

2 tablespoontomato paste

3 cupkale
chopped, Tuscan or curly

1 ½ cupFrench lentils

1 x 14.5 ouncecan diced tomatoes
plus juices

3 ½ cupwater

1 tablespoondijon mustard

1 cuppanko breadcrumbs

1 x 4 ouncechèvre
log, fresh goat cheese, plain or herbed, crumbled
Instructions
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