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Cast Iron Mushroom Meatballs

  • Author: Sydney
  • Prep Time: 20 minutes
  • Cook Time: 30 minutes
  • Total Time: 50 minutes
  • Yield: 2-4 servings 1x
  • Category: Dinner entree
  • Method: Cast Iron
  • Cuisine: Italian
  • Diet: Vegetarian


Hearty, comforting, and cheesy, these shiitake mushroom meatballs are conveniently low-carb with the use of almond flour instead of bread crumbs. 


  • 1 lb shiitake mushrooms
  • 1 small white onion
  • 2 cups almond flour (bread crumbs can be used)
  • 3 cloves garlic, minced
  • 2 whole eggs
  • 1/2 tsp oregano
  • 1/2 tsp thyme
  • 1/2 tsp tsp rosemary
  • Marinara sauce
  • Mozzarella cheese 
  • Parmesan, freshly grated 
  • Basil for garnish
  • Optional: spinach for extra greenage


  1. Preheat oven to 400° F.
  2. Coat a pan in olive oil, and bring heat to medium.
  3. Finely dice onion, and sautee in oil for roughly 7 minutes.
  4. Dice mushrooms, and add to the pan with your three cloves of minced garlic. Continue to cook for about 10 minutes, or until the onions start brown.
  5. Remove mushrooms and onions from heat, and allow to cool.
  6. Add the almond flour, eggs, rosemary, thyme, and oregano.  Mix it all together. If you want a really even texture, you can blast this mixture in a food processor blender, but it’s not necessary.
  7. Mold the mixture into your “meat” balls.  Coat the balls in almond flour (or bread crumbs if you wish).  Place them spaced out on a baking sheet lined with parchment paper and bake for about 30 minutes, or until they are firm and hold their shape.
  8. While the mushroom meatballs are baking, bring your cast iron pan to medium-low heat with about 1/3 to 1/2 of the marinara sauce.  If you want to add some extra veg, add a handful or two of spinach and let it cook down in the marinara sauce.  
  9. Once mushroom meatballs are ready and spinach is cooked down, carefully place the meatballs in the cast iron pan.  Add the remaining marinara sauce over the meatballs.
  10. Slice mozzarella and add a bit to the top of each meatball.  The more the better, honestly. 
  11. Switch the oven to your broil setting.  Place the cast iron pan on the top shelf of your oven and it broil until the cheese browns and bubbles.
  12. Finally, take the cast iron out of the oven, garnish with some fresh basil, and serve!  Be careful – that pan will be HOT.

Keywords: mushroom meatball, low carb meatballs, vegetarian low carb diet, low carb dinner, low carb, almond flour, vegetarian meatball, cast iron meatballs

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