Cook fennel seeds in a small saucepan over medium heat 1 minute or until toasted. Place seeds in a small zip-top bag; crush with a rolling pin.
Combine fennel seeds, fennel fronds, salt, rind, and pepper in a large bowl.
Steam the fennel slices, covered, 5 minutes or until tender. Drain. Add fennel and olive oil to fennel frond mixture in bowl; toss well.