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Open a can of pinto beans with a can opener. Heat the beans for 6-8 minutes in the microwave for a quicker dish.
Take a can opener and place the circular disc on the inside rim of the can. Clamp the 2 handles down to puncture the can with the disc. Rotate the knob on the exterior side while keeping the handles clamped together to rotate the disc around the can and cut it off. If you have a manual can opener (also called a camp opener), hold the opener in your right hand. Puncture the inside rim of the can with the pointed blade. Then, turn it like your turning the ignition in a car until you've carved around the entire can. Canned beans are already cooked, so you really only need to heat them. If you were really hungry though, you could eat them right out of the can. Get a microwave-safe container and pour your beans in. Cover the beans with plastic wrap and puncture 3-4 holes in the top of the plastic wrap with a fork. Read the label on your can for specific directions on heating the beans in the microwave; usually, the beans need to be microwaved for 6-8 minutes. Glass and ceramic are always microwave-safe unless they're painted. To check, look on the bottom of a bowl and look for the words "microwave safe." Some containers will have a symbol with 3 waves on it to indicate that the container is safe for the microwave. Be careful when removing the container that the beans were heating in. It may be exceptionally hot when you take it out depending on the material that the bowl is made out of. Seasonings can be added before you microwave the beans by mixing them in before you heat them. You can also add them after they've heated and mix them in while you're letting the beans cool if you want.