The length of time to cook will vary depending on the type of solar oven, the oven temperature, and the weather. My soup cooked about 3 hours. The day was slightly cloudy, 64 degrees, and the oven temperature was only 275 - 300 degrees
To cook in a slow cooker, as the original recipe states, simmer for 2 hours and then add the cheese and bacon and let heat until the potatoes are fully cooked.
The bacon can be cooked in the solar oven and the vegetables can be sauteed in the solar oven as well. This time is not included in the above cook time.
For a dairy free recipe, the cheese can be left out and served on the side.