Cook the peas according to the package directions. Drain and transfer to a bowl.
Meanwhile, in a saucepan or small skillet, melt the butter over low heat. Whisk in the flour, salt, and pepper until blended. Cook, whisking constantly, for 1 minute. Gradually stream in the cream, stirring until thickened, about 1 to 2 minutes.
Stir in the peas; gently toss to coat in the cream sauce.
Notes
How to cook Le Sueur sweet peas or other canned peas: Empty the contents of the can into a saucepan (including the liquid in the can). Heat on the stovetop just to boiling; drain, and then use in the recipe as instructed. For the microwave, place the contents of the can in a microwave-safe bowl, cover, and heat for about 1 - 1 ½ minutes; drain, and use in the recipe as instructed.Cook your peas to your desired level of doneness. If you like really soft peas, cook them longer. If you prefer crisp-tender, bright green peas, watch them closely and don't cook them for too long.