It’s sort of an unwritten rule: If you want to make a high-protein smoothie palatable, mix it with banana or peanut butter—and use chocolate-flavored protein powder—because you can’t trust other flavors to taste good. But the result is always the same boring, OK-tasting shake.

Repetition is also a factor. If you drink the same smoothie two or three times a day, every day, the mere sight of it will make your stomach churn before long.

Luckily for you, we stretched our imagination—and test-drank the results—to come up with original and flavorful options that offer nutrition that’s equal to or even greater than the standard-issue muscle shakes out there. Better yet, each takes only five minutes or less to make.

See the recipes that follow and our instructions on when to blend them for the best results, and start mixing up shakes you and your muscles will both look forward to.