Yes, the Le Creuset Stoneware Rectangular Baker with Platter Lid, 2 3/4 Qt. is safe for both the oven and microwave, and the use care notes oven-safe use to 500°F.
Also safe for the broiler and freezer.
High-fired stoneware helps ensure even heating.
Yes, the lid can be used as a tray or serving platter for prep, serving, and carrying food.
It serves as a tray for holding food hot off the grill.
The lid has flared side handles for easy gripping and serving.
The baker has a 2 3/4-qt. capacity.
Interior dimensions are 12 1/2" x 9" x 2 1/4" high.
Exterior with lid and handles is 15 1/4" x 9" x 3" high.