In a small saucepan, bring stock to a boil. Add quinoa. Reduce heat; simmer, covered, until liquid is absorbed, 12-15 minutes. Remove from heat., In a large skillet, cook and crumble sausage with peppers and onion over medium-high heat until no longer pink, 8-10 minutes. Add garlic and seasonings; cook and stir 1 minute. Stir in quinoa. Freeze option: Place cooled quinoa mixture in freezer containers. To use, partially thaw in refrigerator overnight. Microwave, covered, on high in a microwave-safe dish until heated through, stirring occasionally.