Step 1

Mix together all the ingredients for the aioli then heat in microwave for 30 seconds, stir again, and refrigerate.

Step 2

Next, mix up all the burger ingredients and form patties, then set them aside on a plate on the counter.

Step 3

Now, add some olive oil to a medium sized saute pan over high heat, add your sliced mushrooms and saute and stir for about 8 minutes – until the mushrooms have some golden color to them.  Remove the mushrooms from the pan and set them aside.

Step 4

Turn the heat down to medium-high and add another tablespoon of olive oil to the saute pan, add the onions and peppers, and saute for 8-10 minutes covered.  Add the garlic and saute one more minute. Then mix in the Worcestershire sauce, salt, pepper, and the cooked mushrooms to the pan.

Step 5

Finally, place 6-8 slices of provolone cheese on top of the veggies and let them melt.  Turn the burner off and cover the pan.

Step 6

Heat the grill to 400-450 degrees.  Spray some grill spray on the grates and on each burger.  Grill the burgers on one side for 3 minutes, then flip the burgers and grill the other side for another 2 minutes. Remove the burgers from the grill and let them rest for a few minutes.

Step 7

If you want to heat your buns, spray them with a little grill spray on the cut side and place them cut side down on the coolest part of the grill for about 30 seconds - 1 minute.  Be careful they can burn quickly.

Step 8

Meanwhile turn the burner on under the onions and peppers.  Reheat for a few minutes until the cheese softens and melts.

Step 9

To assemble, smear some Aioli on the buns, add a burger, layer on the onion/peppers/mushrooms mixture and enjoy!