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 Tuna and Red Onion Spiedini?

You need 7 ingredients. The key ingredients include: 6 tablespoons garlic-flavored olive oil, 2 tablespoons fresh lemon juice, 4 teaspoons chopped fresh rosemary, 1 11- to 12-ounce tuna steak, cut into 1-inch pieces, and more.

Is Tuna and Red Onion Spiedini suitable as seafood?

Yes, Tuna and Red Onion Spiedini falls under the Seafood category and is a great choice for this type of meal.

How do I store leftover Tuna and Red Onion Spiedini?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Tuna and Red Onion Spiedini Recipe

Name: Tuna and Red Onion Spiedini
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 6 tablespoons garlic-flavored olive oil; 2 tablespoons fresh lemon juice; 4 teaspoons chopped fresh rosemary; 1 11- to 12-ounce tuna steak, cut into 1-inch pieces; 12 1x1x1/4-inch red onion pieces; 8 lemon slices, halved; 4 cups (about 2 ounces) mixed baby greens

Bake this irresistible Tuna and Red Onion Spiedini at home. Made with garlic, lemon juice, fresh rosemary and tuna. Easy step-by-step instructions inclu…

This Tuna and Red Onion Spiedini relies on simple, everyday ingredients such as garlic-flavored olive oil, fresh lemon juice, chopped fresh rosemary and x1x1/4-inch red onion pieces. It comes together quickly and makes 4 servings, at about 453 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Seafood

Servings: persons

6 tablespoons garlic-flavored olive oil
2 tablespoons fresh lemon juice
4 teaspoons chopped fresh rosemary
1 11- to 12-ounce tuna steak, cut into 1-inch pieces
12 1x1x1/4-inch red onion pieces
8 lemon slices, halved
4 cups (about 2 ounces) mixed baby greens

Frequently Asked Questions

Quick Info

Servings
4 servings
Calories
453 kcal
Category
Seafood

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