In a pot with two liters of boiling water, add the butter, then the 1/2 onion and the pasta. Add salt to taste. Once it reaches a rolling boil again, wait between 7-8 minutes for al dente pasta. After that time, remove the pasta from the heat, drain it, and place it in a glass dish. Cover and set aside.
Slice the mushrooms, the other 1/2 onion, and the chili. Cut the tomato into 4 wedges. Sauté these ingredients in olive oil. Season with salt and pepper.
Once the onion reaches a translucent state, add the tuna and mix well. Add the olives, basil, and tomato sauce. Let it simmer on low heat for 10 minutes, or until it reaches a boiling point. Check the salt and pepper.
Serve the pasta, add the freshly prepared sauce, and garnish with a few basil leaves.
Nutritional Information
* * Information per 100g serving, percentage of daily values based on a 2,000 calorie diet.
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