Heat up a large pan and let 1/4 cup of butter dance into a sizzle. Introduce 1 1/4 lb. of ground beef and finely diced onions to the pan, orchestrating a flavorful sauté until they reach a tantalizing, golden-brown crescendo.

Sprinkle 1/4 tsp. of pepper and 2 1/2 tsp. of salt into the mix, creating a harmonious melody of flavors. Join the symphony with 2 cups of diced celery and 1 1⁄2 cups of water, letting the composition simmer for a soul-soothing 15 minutes.

Introduce the finely chopped pimientos, optional sliced mushrooms, sliced water chestnuts, and drained bean sprouts to the composition. Let this culinary composition serenade your senses until the vegetables attain a tender perfection.

Compose a thickening masterpiece by blending 3 tbsp. of cold water, 1 1/2 tbsp. of soy sauce, 3 tbsp. of cornstarch, 1 tablespoon of beef gravy or molasses, and 1 1/2 tsp. of sugar. This artistic combination will be the key to a sumptuously textured dish.

With a gentle yet confident hand, introduce the thickening concoction into the simmering symphony. Stir diligently, allowing the melody to thicken to a crescendo of perfection, ensuring every element harmonizes seamlessly.

Spoon the La Choy Hamburger Chow Mein onto a canvas of hot cooked rice, chow mein noodles, or nestled within the warm embrace of hamburger rolls. The vibrant presentation and multifaceted flavors will be a masterpiece that delights both the eyes and the palate.

Whether preparing in advance or utilizing a crock pot for convenience, the remnants of this culinary composition can be frozen. This ensures future feasts that effortlessly recapture the magic and flavors of this unique La Choy Hamburger Chow Mein.