Yes, your Magnaware cookware is oven-safe. The maximum temperature depends on the type. Dutch Oven pots are safe up to 450°F (232°C) and Stock Pots up to 350°F (177°C) if you are using the lids with plastic knobs. If you place the stock pot without the lid it is safe up to 450°F (232°C) just like the Dutch Oven pots.
For best results place them in a preheated oven and never during a self-cleaning cycle. Your Magnaware Dutch Oven roaster with its oval shape will help create a convection effect for optimal cooking results and even distribution of the heat.