I had lunch?
How do you say I had lunch in past tense -- yo almorce or yo almorze?
All of the answers above are not standard Spanish.
I had breakfast: desayuné
I had lunch: comí/almorcé
I had dinner: cené
Tomé el desayuno/almuerzo etc cannot be considered wrong, but it is certainly not said by a native.
He tenido mi almuerzo
Without accent marks, neither is correct.
And if those were attempts at the preterite, then that means "I lunched". (don't read, incorrect)
Also I don't think había almorzado (I had lunched) is what you want to say.
comió el almuerzo
tomó el almuerzo (probably the closest to "I had lunch") (don't read-incorrect)
Now I'll be in the corner for the entire weekend!
He almorzado hace una hora. I had lunch an hour ago
Me almorce (con acento escrito sobre le e)