Preheat the oven to 350 degrees.
Cut the tops off of each red pepper.
Fill each pepper with 1/2 cup of meat sauce and then put the top back on each pepper.
Place the red peppers in a large pan (I used a 13x9 pan).
Chop cauliflower in a food processor to create cauliflower "rice".... I filled it 3 times to get the 3 cups of cauliflower rice. But this could be different based on the size of the cauliflower rice. I would just do a little at a time until you get the right amount.
Evenly spread the chopped cauliflower in the pan surrounding the peppers.
Evenly pour 1 cup of strained tomatoes on top of the cauliflower and lightly fluff/mix the cauliflower mixture with a fork.
Put the pan in the oven and bake the stuffed peppers for 60- 70 minutes.
Once the peppers look a bit "wrinkled" and the dish becomes fragrant, set the oven on broil and let the peppers broil for 2-3 minutes and remove from the oven.
Let cool and enjoy :)