Ground Beef Spinach Casserole

Ground Beef Spinach Casserole

Cook Time: 30 minutes

Ingredients

  • 1 pound ground beef
  • 1 medium onion, chopped
  • 1 clove garlic, minced (or more to taste)
  • 1 (10 ounce) can sliced mushrooms, drained
  • 1 teaspoon dried oregano
  • 2 dashes hot pepper sauce (or more to taste)
  • Salt and ground black pepper to taste
  • 2 (10 ounce) packages frozen chopped spinach, thawed and drained
  • 1 (10.5 ounce) can condensed cream of celery soup
  • 1 cup sour cream
  • 1 (8 ounce) package shredded mozzarella cheese

Directions

Step 1: Preheat the oven to 350F (175C).

Step 2: In a large skillet, heat over medium-high heat. Add the ground beef, chopped onion, and minced garlic. Cook, stirring frequently, until the beef is browned and crumbly, about 5 to 7 minutes. Drain any excess grease.

Step 3: Add the sliced mushrooms, oregano, hot sauce, salt, and pepper to the skillet. Stir and let it simmer for about 5 minutes.

Step 4: Add the thawed and drained spinach, cream of celery soup, and sour cream to the mixture. Stir well and cook for an additional 5 minutes until heated through.

Step 5: Transfer the mixture to a casserole dish and top with shredded mozzarella cheese.

Step 6: Place the casserole in the preheated oven and bake for 15 to 20 minutes, or until the cheese is melted and bubbly.

Nutrition Facts (per serving)

Calories 396
Total Fat 26g
Saturated Fat 13g
Cholesterol 93mg
Sodium 960mg
Total Carbohydrate 14g
Dietary Fiber 5g
Total Sugars 4g
Protein 28g
Vitamin C 8mg
Calcium 494mg
Iron 4mg
Potassium 708mg

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Comments

Grocery Addict

10/06/2025 01:52:54 PM

Super simple recipe with serious Midwest “hot dish” vibes. I made a few changes to the methodology: first, I browned the meat solo with a pinch of salt to encourage the Maillard reaction, rather than including the onions and garlic (which would’ve created liquid that prevented proper browning). I didn’t have canned mushrooms on hand, so after browning the meat, I scooped it out and tossed in a pint of sliced cremini mushrooms with a small squirt of oil. Once the mushrooms were browned, I added the onion and about 10x as much garlic as called for. Once the onion began to turn translucent, I added the beef back to the pan with the squeezed-out spinach, canned soup, salt, and pepper. I used full-fat Greek yogurt instead of sour cream, then bumped up the spices—I used oregano, Italian seasoning, cayenne powder, and about 2 tablespoons of Cholula. It still felt a little lacking, so I also added a tablespoon of fish sauce for umami. That was the ticket! I then topped with just 4 ounces of freshly shredded mozzarella and a few tablespoons of leftover shredded cheddar, then baked. Pretty yummy, even if it's not very pretty.

Chef Carol

08/22/2020 03:17:18 PM

Yes, I added Basil and egg noodles. I made it for the first time using the added ingredient and everyone loved it. The only commitment I received from my husband was he thought it had too much spinach otherwise he loved it!

LLK

01/01/2024 11:31:27 PM

I used fresh mushrooms and after assembling it in my cast iron skillet, I popped the skillet in the oven. I also left it in the oven as it cooled for five minutes which gave the cheese a golden color.

Grannycan

01/21/2023 02:53:26 PM

Love the ingredients, not the method. This will be a skillet meal in my house. Cook the meat with the onions, drain, add remaining ingredients, heat through, add cheese on top. Lower the flame and cover for 5 minutes for the cheese to melt. Why mess up another dish?

RedTofu8953

06/09/2023 09:05:25 PM

I tried this with fresh spinach and I also added finely chopped red pepper, celery and carrot (for more veg). I also used reduced fat celery soup, light sour cream (25% less fat) and reduced fat mozzarrella. I did it on stovetop and it was so fast and delicious! Defo on my list of favourites now.

Jacquelyn Garman

03/27/2023 03:49:39 PM

An easy, comforting casserole that lends itself to whatever adaptations you like. I made some minor modifications based on what I had on hand and personal preference (ground turkey, fresh mushrooms, extra seasoning, diced celery sauteed with the onion, Gruyere cheese for the topping) and then layered the final mixture with parboiled sliced potatoes (1/4") before baking. While it's a bit basic to become a household favorite, it's definitely worth repeating from time to time. Plus it will make great leftovers!

Cathy Hornback

10/31/2023 11:17:40 PM

I usually follow a recipe closely the first time, but I used it mostly for inspiration based on what I had on hand. I used ground turkey, added some diced red Carmen pepper and since there's very little fat in the turkey I used a little bit of olive oil and didn't drain it. 3 big cloves of garlic, about 1/2 lb of fresh mushrooms, a big bundle of fresh spinach. It was still liquid-y when done so I added a heaping tablespoon of rice flour, which thickened it up nicely. I omitted the cream soup, and just used a cup of light sour cream - plenty of creamy goodness with that. Lastly, I added a tablespoon of za'atar instead of the oregano. It was delicious! I think I'm on to something here. I will add the mozzarella cheese when I serve it for real.

jc8952

11/18/2020 04:41:55 PM

Loved it. I did make some changes. I added a teaspoon of dried basil, used 3 cloves of garlic and added that after cooking the beef and onions. If you saute garlic too long it gets bitter. I also cooked 1 cup of elbow macaroni and added that to give it a little more substance. My wife and I liked it a lot. Changes I would make in the future would be to use fresh mushrooms rather than canned and less hot sauce. (I added more than two dashes) It was flavorful enough and the Louisiana style hot sauce has a lot of vinegar which kind of made it more sour than I would like. Perhaps red pepper flakes instead of the hot sauce. This would also be good with cheddar instead of mozzarella cheese. I will make this again.

mshcooks

12/17/2023 12:19:42 AM

Like others, I needed a recipe that would work with what I had, and what me and my husband like. We didn't have any hot sauce, so I substituted 1/8 teaspoon of cayenne pepper, just enough to add interest. I didn't have sour cream, so added half a can of half & half with the cream of mushroom soup. Instead of frozen chopped spinach, I had a bag of frozen whole spinach, and I used half of that (8 oz). The finished dish had plenty of creaminess and a balanced spinach to mushroom to meat ratio. I served this over rice. We both liked it and will definitely have it again.

mrsking528

11/17/2022 12:11:02 AM

Absolutely loved it, no complaints from the kids which is always good. It was not as thick as I thought it would be and had to cook on the stove top a lot longer than 5 minutes. I did sub the canned mushrooms for fresh same as spinach, I also used cream of mushroom soup. I will definitely make this recipe again. The flavor was depot on. I also added extra hot sauce.

Sue

09/01/2024 12:58:05 PM

Very good. Made a 3 quart casserole. You really gotta love spinach.😁 Hint: I've found that if you place the thawed spinach in a clean kitchen towel, bring up the sides and wring it, the water drains well without making a mess. Faster than using a colander. Just make sure the spinach is completely thawed. I did add extra oregano, garlic and some basil.

Angela

08/06/2025 05:22:32 PM

I made with ground chicken. Too much spinach! I think 10 ounces would be the right amount. Needs at least 2 tsp of oregano, 10 shakes of the hot sauce, salt (not too much), and pepper. We had spaghetti the night before. I added some of the noodles, chopped up, as some reviewers suggested. May be what it needed extra seasoning. I eat it for lunch. Couldn’t see having this as a dinner.

Christi Umana

08/05/2025 11:43:19 AM

We enjoyed this dish. Very easy to make.

Janet Mohrman

06/26/2025 10:56:26 PM

Used only one package of spinach as that is all I had but just as well as 2 packages would have been too much. Used light sour cream. After cooking the ground beef and draining it, I added the remaining ingredients, thoroughly stirred, and heated through with the cheese on top. I did not bake this in the oven to avoid heating up the kitchen on such a hot day.

Michelle

06/24/2025 11:29:44 PM

I used 16 oz. fresh sliced mushrooms 3 t. dried oregano 16 oz. fresh spinach, coarsely chopped cream of mushroom soup

Melissa Carter

05/10/2025 11:20:11 PM

Can’t wait to make it again soon.

alpralat

05/01/2025 11:02:15 AM

Excellent casserole and easy to put together. I love Spinach and this recipe is perfect.

AceSlaw4880

04/28/2025 05:19:28 PM

The recipe was great but I did make changes. I don't like using canned soups in recipes. I don't think they are healthy at all. So I made a substitute of 20 oz of organic beef broth thickened with 2-3 tablespoons of organic potato starch instead of canned soup. I mixed it all together as directed in the recipe. However, I found that the flavor was a little flat. So I added 2 teaspoons of sea salt and 3 very tiny pinches of Tarragon. I stirred it all in and the casserole was a little runny from the broth. So I added a small box of spaghetti noodles that were made from chickpeas, not flour. I topped it with the cheese and baked it. It turned out really well and the Tarragon was perfect. The recipe turned out to taste like Beef Stroganoff! I will make it again and maybe add rice next time.

SmartMead3879

04/20/2025 10:30:13 PM

Delicious. If people want a rice, potato etc that is fine. But this is a great casserole on its own. My husband loved it.

Cathy

03/14/2025 07:59:12 AM

I thought it was good. Howevert I think it needs a little crunch, like sliced water chestnuts. It was easy and had ingredients I commonly keep in the kitchen. I'll definitely try again and may add a few things. Cathy