Creamy Celery and Onion Casserole

Made This Recipe? Add Your Photo

Total Time
25mins
Prep 5 mins
Cook 20 mins

This dish is comforting and delicious, compliments pretty much any main course, and would also be a good dish for a brunch buffet. I made this up one evening when I needed a vegetable side dish, and it was so good I plan to continue making it for years to come! A good way to describe this dish is a healthier, more vegetable-y version of your favorite cream of celery soup in side dish form! So, tweak the recipe to adjust it to your tastes and what you have on hand, and enjoy!

Ingredients Nutrition

Directions

  1. Clean the celery, washing off all dirt. Chop into desired size. I suggest cutting the ribs into approximately 1 inch pieces (I cut on the diagonal to try to make it look fancier). Include the ribs and as much of the leafy greens as you can--they're tasty too! (My cleaning approach for a particularly muddy head of celery was to chop first, discarding the dried out tops, dunk it all in a bowl of cold water and swish around to get the dirt to fall to the bottom, and then scoop out the celery pieces into a salad spinner to remove excess water.).
  2. In a medium to large size saucepan on the stove top, saute the celery (you may need to work in two to three batches depending on your pan size and amount of celery) in the 1 tbsp extra virgin olive oil. (If you saute in batches, only use a total of 1 tbsp oil--e.g. if you saute in two batches use about 1/2 tbsp per batch.) When sauteing, try to develop a little of the browning/carmelization that will give the dish extra flavor by not stirring constantly. When the celery has cooked to your desired done-ness (e.g., I like mine lightly sauteed and still a little crispy), lightly salt and transfer to a 8 x 8 square glass baking dish. Repeat until all celery is sauteed and in the baking dish.
  3. (Assuming you have not burned the celery in the pot) Using the same hot pot you just emptied of the last batch of sauteed celery, over medium heat add another 1 tbsp of olive oil and the diced onion. Saute for a few minutes to your desired done-ness. Add the 1 1/2 tbsp butter and allow to thoroughly melt, stirring in to the onions. Once melted, add the 1 1/2 tbsp flour and stir well. Keep stirring for a few minutes--not allowing to burn--as the roux comes together. (Just keep it moving in the pan, and take it off the heat if you think it is starting to burn.).
  4. Slowly add small amount of the milk, stirring well after each addition to thoroughly incorporate. Add the nutmeg and taste for seasoning. You'll probably need to add more salt, maybe even a few tablespoons (depending on the type of salt you use). Keep stirring the mixture over medium heat until you get the seasonings right and the mixture comes just up to a boil and thickens. Turn off the heat.
  5. Mix the melted butter with the bread crumbs.
  6. Add the sauteed celery back in and stir to coat the celery with the creamy mixture. Transfer the creamy celery mixture back to the baking dish. Top with the butter/bread crumb mixture and bake (or broil if you pan can handle it) in the oven just to brown the bread crumbs.
  7. Variations: You could add or substitute other vegetables in this dish, e.g., peas, carrots, potatoes, brussel sprouts, cubed squash, asparagus, leafy greens. You could also add herbs and spices to your liking. You could add shredded cheese to the roux once it comes together to give it a cheesier flavor. You can omit the bread crumb topping--I often do.
Most Helpful

5 5

This was really great--was looking for a way to use up some celery and your casserole was easy and a good complement to the rest of dinner. I was a bit lazy: I cooked the celery and onion all together until tender with a bit of oil, salt, and pepper (instead of doing it in batches per your directions). I then made the roux in a smaller sauce pan, melting the butter and adding a clove of chopped garlic (instead of building the roux in the onions as you did). Then combined the sauce and veggies, topped and broiled as written. Great! Might add some cheese next time, but will definitely be using this recipe again. Thanks! >>Updated to add stars, sorry!<<

5 5

I liked it, hubby didn't :-(. I will have to try the same thing with a different vegetable next time. It may be he just wasn't into the celery. I even liked it after it got cold.