A Butte restaurant owner is warning her customers about rising menu prices after the cost of a single case of tomatoes jumped from $23 to $70.Carrie Fisher owns two restaurants in uptown Butte and goes through roughly 12 cases of tomatoes a day at both locations, which are open 6 days a week. She said a combination of inflation and tariffs on Mexican produce is driving up her costs."We received notice that our tomatoes were going from $23 to $24…