Pat your salmon fillet dry with paper towels — this is actually the most important step nobody talks about. Heat a skillet over medium-high heat until you hear a gentle sizzle. Sear the salmon skin-side up for 5-6 minutes until the skin gets crispy and golden. This takes longer than you'd think, but trust me on timing.
Flip the salmon carefully and cook for another 3-4 minutes until it flakes easily with a fork. Mine always sticks a little to the pan at the edges and that's totally fine — that's the flavor-packed crust developing. Let it rest on a plate for 2 minutes while you prep your greens.
Wash and spin dry your baby spinach and arugula — wet greens make everything soggy. Tear the arugula into bite-sized pieces if you want, though I leave mine whole because they look prettier on the plate. Pat your cucumber slices dry too since excess water dilutes the dressing.
Combine your spinach, arugula, tomatoes, and cucumber in a large bowl. Don't dress it yet — I learned this the hard way after my first attempt got all wilted and watery. You're building the spring salmon salad recipe base that'll stay crisp and bright.
Make your dressing by whisking together the olive oil, lemon juice, honey, salt, and pepper in a small bowl. Taste it straight from the spoon — this is where I always add extra lemon if it needs more zing. The honey balances the acid perfectly, so don't skip it even though it seems random.
Toss the greens and vegetables with about two-thirds of your dressing — you can add more if needed. Break your cooled salmon fillet into chunky pieces and nestle it into the salad. The flaky pieces should stay visible on top, not get hidden underneath.
Top everything with crumbled feta and toasted almonds right before serving. Drizzle the remaining dressing over the top if you like it extra saucy. Divide between two bowls and eat immediately while the greens are still crisp.