Prepare the Steak and Shrimp:

Season the steaks and shrimp with salt and pepper.
Heat a skillet over high heat, add a tablespoon of olive oil, and sear the steaks to your desired doneness, about 4-5 minutes per side for medium-rare. Remove and let rest.
In the same skillet, reduce to medium heat, add the shrimp, and cook until pink and opaque, about 2-3 minutes per side.
Cook the Vegetables:

In a pot of boiling salted water, cook the green beans and potatoes until tender, about 8-10 minutes. Drain.
Make the Creamy Mustard Sauce:

In a saucepan, melt butter over medium heat. Add garlic and sauté until fragrant.
Whisk in Dijon mustard and heavy cream. Season with salt and pepper. Let simmer until the sauce thickens slightly.
Assemble and Serve:

Slice the steaks and arrange on plates along with the shrimp, green beans, and potatoes.
Drizzle the creamy mustard sauce over the steak and shrimp.
Garnish with chopped parsley.
Prep Time: 20 minutes | Cook Time: 30 minutes | Servings: 2