The East Rutherford, N.J., company's shares were 22% higher at 72 cents. They traded on Friday up as much as 39% at 82 cents.
In a statement, the company said it expects to immediately introduce the Beyond Meat products in several U.S. markets.
MamaMancini's sells its products at 45,000 locations of food retailers including Albertson's, Costco, Kroger, Publix, Safeway and Walmart. The company also sells via major distributors including Sysco and United Natural Foods.
For the fiscal 2020 first half ended July 31, MamaMancini's net income reached $700,000 from $100,000 in the year-earlier first half. Sales rose 16% to $15.5 million.
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