Olive Cheese Bread

I stole this recipe idea straight from The Pioneer Woman Cooks website. I didn't follow her recipe exactly, because I can't follow a recipe to save my life. The bread is delicious ... unless you hate olives; in which case, you'll probably hate this too.1 regular can whole black (ripe) olives
1 6-oz jar pimiento-stuffed olives
12 slices Swiss cheese
2 cups shredded Monterrey Jack cheese
1/3 cup real mayonnaise
1/2 stick butter, softened
1 loaf French bread

Roughly chop black and green olives. Combine olives with the softened butter, mayonnaise, and Monterrey jack cheese. Mix thoroughly. Slice French bread in half lengthwise, then spread half of the mixture evenly over the halves. Layer with the sliced Swiss. Top with the remaining half of the olive mixture. Bake at 325 degrees for 25 minutes, or until thoroughly melted and starting to turn light brown and bubbly. * I broiled it for about 3 minutes at the very end; just watch it real close.