How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Grilled Steak Sandwiches With Marinated Watercress, Onion, And Tomato Salad ?

You need 9 ingredients. The key ingredients include: 1/2 cup olive oil, 6 tablespoons white balsamic vinegar, 1 3/4 teaspoons dry mustard, divided, 1 tablespoon dark brown sugar, and more.

Grilled Steak Sandwiches With Marinated Watercress,

Name: Grilled Steak Sandwiches With Marinated Watercress, Onion, And Tomato Salad
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/2 cup olive oil; 6 tablespoons white balsamic vinegar; 1 3/4 teaspoons dry mustard, divided; 1 tablespoon dark brown sugar; 1 2-pound well-trimmed tri-tip beef roast; 4 large plum tomatoes, very thinly sliced; 1 bunch watercress, stems trimmed; 1/2 white onion, very thinly sliced; 6 5-inch pieces French baguette, cut horizontally almost in half, opened flat

Fresh, crisp and full of flavor — this Grilled Steak Sandwiches With Marinated Watercress, Onion, And Tomato Salad is a must-try. Made with olive oil, w…

This Grilled Steak Sandwiches With Marinated Watercress, Onion, And Tomato Salad relies on simple, everyday ingredients such as olive oil, white balsamic vinegar, dry mustard, divided and dark brown sugar. It comes together quickly and makes 4 servings, at about 370 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Salads

Servings: persons

1/2 cup olive oil
6 tablespoons white balsamic vinegar
1 3/4 teaspoons dry mustard, divided
1 tablespoon dark brown sugar
1 2-pound well-trimmed tri-tip beef roast
4 large plum tomatoes, very thinly sliced
1 bunch watercress, stems trimmed
1/2 white onion, very thinly sliced
6 5-inch pieces French baguette, cut horizontally almost in half, opened flat

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Quick Info

Servings
4 servings
Calories
370 kcal
Category
Salads

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Grilled Steak Sandwiches With Marinated Watercress, Onion, And Tomato Salad

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