Step 1

To make dressing: in a bowl or jar, add oil, vinegar, sugar, poppy seeds, dried mustard, and salt. Shake well. Refrigerate until ready to use.

Step 2

Place spinach in a large salad bowl. Top with sliced strawberries, blueberries, raspberries, feta cheese, red onion, and almonds.

Step 3

Drizzle with poppyseed dressing.

Step 4

Serve immediately.