Cook the Pasta: Boil a large pot of water, add pasta, and cook according to package instructions, about 8-10 minutes. Drain and rinse under cold water.

Prepare the Ingredients: Hull and slice the strawberries, dice the avocados, chop the green onions, and prepare the spinach.

Combine the Salad: In a large bowl, combine cooled pasta, spinach, strawberries, avocados, and green onions. If using, add poppy seeds.

Dress the Salad: Drizzle balsamic vinaigrette over the salad and toss gently until well-coated.

Chill the Salad: Cover and refrigerate for at least 1 hour to allow flavors to meld.

Garnish and Serve: Garnish with mint leaves and serve chilled.