Spread 1 TBSP of ricotta on each slice of toasty bread (more if desired, go nuts).
Evenly disperse the fillets of sardines between the toasts, laying them over the ricotta.
If your sardines weren't already marinating in a cracked black pepper marinade, crack a generous amount of black pepper over the toasts.
Garnish with optional seasonal garnishes, like squash blossoms, sugar snap peas, and/or microgreens.
Squeeze fresh lemon juice over the toasts.