I've never tried these but a few friends have recommended them. They said Costco carried them and I recall seeing the item there for some time. Of course, now that I'm looking to buy, Costco only has the Amylu Chicken Burger with Kale and something else, not the Red Bell Pepper/Gouda Cheese variety.
I called a couple Costco locations to check inventory and all said the Red Bell Pepper/Gouda Cheese item is not currently available in any LA area Costco locations - they are seeing how the Kale variety sells and are only stocking this particular type at the present time.
Are there any other retailers beside Costco where you have recently seen the Amylu Red Bell Pepper/Gouda Cheese item?