Rinse and dry the bell peppers. You can use as many as you want, and can use any color bell pepper. Cut the bell peppers in half, and then remove all seeds and any white membrane on the inside. Slice the bell peppers into 2" wide strips, and then slice each strip into 2" portions. This is the way I cut the strips, but you can also cut the peppers into long, thin strips, if desired. If there's a lot of moisture, simply pat them dry with a paper towel.
Place the dry bell pepper pieces in a single layer on a large cookie sheet. Try to NOT let the pieces touch each other. Place the baking sheet into freezer, and let the bell peppers freeze (uncovered) for one hour. When done, they will be hard as a rock!
Remove the frozen bell pepper pieces from baking sheet, and immediately place them into a plastic zip-loc freezer bag, remove air, and seal. The frozen bell peppers will not stick together, because they have been individually frozen! Label the bag, and place the date on it, if desired. They should keep many months in the freezer, if properly sealed.
Three large bell peppers will yield approximately one quart sized bag of frozen peppers. The caloric calculation is based on the TOTAL amount, using three large bell peppers.
How To Freeze Bell Peppers https://www.thegratefulgirlcooks.com/freeze-bell-peppers/