Grilled Portobello Mushroom Pizza is a fun treat when you want to grill something besides meat. This is an easy vegetarian recipe that you’ll make time and time again.
Have you tried to make pizza out on the grill? It is oh-so good and I love so many things about it, but sometimes I want pizza but I would like it to be healthier and also quicker to make. Unless we have meal-prepped the sauce and the dough, it can take more time than I’d like on busy weekends. That is where the Grilled Portobello Mushroom Pizza comes in!
This grills so fast it will make your head spin. Really, it will. The best part is I barely miss the dough (great for those of you on a keto diet)! The portobellos are so hearty and delicious that you aren’t left craving the pizza dough at all. If you find it hard to believe, test it out!
Since we use a Big Green Egg, we need some extra time to get the charcoal up to temperature. If you are using a gas grill, these are the times I envy you!
Step One: While the BGE is heating up, remove the gills out of the underside of the mushroom. It scrapes out really easy with a spoon. Just gently scrape and pull the spoon towards you and the dark brown mushroom gills will come right out.
Step Two: Once you have taken out all of the gills, brush the mushrooms with the olive oil/herb spread on both sides. The olive oil will soak in immediately and you will be left with the feeling you didn’t add it at all. No worries. You can either add more or leave it be. The herbs add that amazing taste. The olive oil will help the mushroom not stick to the grill.
🔥 Grilling Instructions
Step One: Bring the grill to 350 degrees and set it up for indirect heat. On the Big Green Egg, I added the plate setter. On a gas grill, turn off the burners immediately under the area where you will place the mushrooms.
Step Two: Add the mushrooms to the grill upside down. You want the rounded top of the mushrooms facing up like in the photo below. Grill these for five minutes and remove them from the grill.
Step Three: Turn the portobellos over on a sheet pan. Now it’s time to add the sauce. We used a no-cook sauce this time. You can use this one or the one that we used in our Grilled Pizza recipe or any family favorite you already have! We used a couple of tablespoons for each mushroom but that is a personal taste. Top with cheese and sliced cherry tomatoes.
Step Four: Place the portobellos back on the grill and let it cook until the cheese is thoroughly melted. It took me about five more minutes.
Step Five: Remove them from the grill and serve!
📌 Items to Note
You can eat the gills of the mushrooms. If you cook with them, they may turn your food a murky brown color. We always take ours out but the decision is yours. Removing the gills also frees up space for the sauce and cheese – and who doesn’t want more of that?
💡 Recipe Tips
I love a great no-cook sauce that is ready in minutes. This one is almost not worth writing about as you are adding the herbs, tomato sauce and tomato paste together and whisk together. That is it.
I prefer to use as many fresh vegetables as I can, as I have found that the canned varieties can taste salty if you aren’t careful.
If you like this recipe for pizza, make sure to try our Grilled Pizza recipe here. It is made using homemade dough and homemade sauce but it is such a delicious recipe. I don’t want you to miss it!
If you have non-mushroom lovers in your house, you can make a similar version by making the base be tomatoes like we did in the Grilled Tomatoes with Mozzarella. We used the same herb spread on this recipe as well – because it is THAT good.
Grilled Portobello Mushroom Pizza
Easy No Cook Pizza Sauce
- 15 oz tomato sauce
- 3 tbsp tomato paste
- 1 tbsp oregano
- 3 cloves garlic
- 1 tbsp parsley
Olive Oil Herb Spread
- 1 tsp basil dried
- 1 tsp oregano dried
- 1 tsp parsley dried
- ½ tsp onion powder
- ½ tsp garlic powder
- ¼ cup olive oil
Easy No Cook Pizza Sauce
- Combine all the ingredients and mix together in a bowl. Set aside. This should serve up to 8 portobello mushroom pizzas.
Olive Oil Herb Spread
- Combine the herbs with the olive oil and stir. Brush on both sides of the portobello mushroom. This mix is enough to make 4 portobello mushroom pizzas.
Grill the Portobello Mushroom Pizza
- Scrape the fins from the underside of the mushroom using a tablespoon
- Brush both sides of the mushroom with the olive oil herb spread
- Grill the mushroom upside down (with the cap facing up) for three to five minutes
- Remove the mushrooms from the grill and turn them over
- Add tomato sauce, cheese and other toppings
- Place on the grill until the cheese is fully melted (about five minutes)
- Remove and serve!
Jason’s been firing up the grill for over 30 years after graduating from the US Coast Guard Academy. His love of finely-grilled steak and chicken led him to buy his first Weber grill to put on his apartment patio in 1992. Each military move led to a new grill (a mixture of gas and charcoal) until he fell in love with the Big Green Egg in 2008. Since then, he has added another 4 grills to the collection. Yes, he has a problem. Jason loves smoking in the ceramic BGE with exotic woods including olive wood from Egypt and hard to find varieties such as sassafras and orange wood. Jason takes the term “foodie” to a whole new level, jumping at the chance to take food tours and cooking classes during foreign travels. These have provided inspiration to incorporate new ideas into recipes when he gets back home. He has been featured in Fox News, Parade, Yahoo News, Kansas City Living and more. After retiring from the military and moving to southwest Florida, he has focused grilling and smoking locally sourced meats and fish (read: he likes to catch his own fish!)