Tepan Yaki Steak with Homemade Shrimp Sauce

I love Japanese Steakhouses so I decided to attempt it at home.  I even made the shrimp sauce.  The sauce was great but not as good as Sakura or Mizu.  This was a great recipe for home and it definately satisfied my craving for Tepan Yaki and was about 1/2 the price of going out.  Also when cooking at home you can control the amount of butter and oil used!
Ingredients:

• 2 Steaks (Flank, New York Strip, whatever cut you choose)
• 1 package mushrooms (Sliced or whole)
• 1 package sprouts or 1-2 cups
• 2 medium zucchini cut however you choose (strips or circles)
• 1 medium onion chopped
• 1 tablespoon toasted sesame seeds
• 3 table spoons butter
• Olive oil
• 1 cup rice
• 1-2 tablespoons teriyaki sauce
• salt and pepper

Shrimp Sauce: I did a simple google search for this recipe and found several results.  I kind of just blended them all together to make my own.  These measurements might not be exactly what I did so feel free to add more or less of any of them to your liking.

• 1 cup mayonnaise
• 1/4 cup water
• 1 tablespoon sugar
• 1 tablespoon melted butter
• 1/2 teaspoon garlic powder
• 1/2 teaspoon paprika
• 1 teaspoon mustard or mustard powder
• 1 teaspoon soy sauce
• 1 teaspoon ketchup or tomato paste
• 1 teaspoon pepper

Directions: Melt two tablespoons butter in saute pan with 1 tablespoon teriyaki sauce add mushrooms, onions, and zucchini.  Sprinkle with sesame seeds and cook to your preference.  Meanwhile heat skillet with olive oil add 1 tablespoon butter if desired and cook steak to your preference season with salt, pepper, and sesame seeds, then cut into bite size pieces.  Add Sprouts to saute pan with the other vegetables and add another tablespoon teriyaki sauce. Meanwhile cook one cup rice in rice cooker. For Shrimp Sauce just blend all ingredients together in bowl.