Prepare the Vinaigrette: Chop the peaches and combine them with honey, salt, and seeds. Stir in the vinegar and mint sprigs before slowly whisking in the olive oil. Set aside to let the flavors meld.
Cook the Salmon: Season the fish with salt and pepper. Heat oil and butter in a cast-iron skillet, then sear the salmon for 3-4 minutes per side. Baste with the vinaigrette after the first flip.
Toss the Slaw: Mix the grated broccoli and carrots. Season with salt and dress with the peach vinaigrette.
Assemble: Lightly brown the tortillas in a pan. Layer with slaw and flaked salmon, then finish with extra vinaigrette, cilantro, and fresh lime.