I'm still not sure I understand.

"Operating expenses" are the ongoing costs of running a business. For you, that's your employee's wages, cost of ingredients, your rent, equipment loans and replacements, shrinkage, utilities, and a few other things. You pay that, but you also directly manage those expenses: your landlord normally wouldn't be involved with them at all.

Your landlord has operating expenses, too: land taxes, insurance, utilities, any employees or contractors they have, and so on. However, in most leases the landlord's expenses are the landlord's problem; he recovers his costs through your rent payments, not by passing them on to you directly. Does your lease pass along your landlord's operating expenses or something? If so, does it enumerate the specific expenses?

Your lease sounds strange as hell. Given that you believe you're stuck with this guy for four more years (unless your business goes under), I would be very tempted to have a contract lawyer review it and advise you.