If you do that you need to remember to protect the microcontroller from being fried by the opamp output - 10k resistor to limit current for instance.
These days there are plenty of rail-to-rail 5V capable opamps out there for interfacing to microcontrollers, Microchip have a large range I believe, checkout
for instance the MCP6002.
But all this is immaterial because you have a strain-gauge sensor which immediately
suggests using an instrumentation amp, and the HX711 is pretty-much the "go to"
device for this in the Arduino world, lots of examples out there to copy.