McCormick Mississippi Roast Seasoning Mix for Instant Pot, 1.25 oz Pack of 12 — Pressure-Cooker Ready, No Artificial Flavors

McCormick Instant Pot Mississippi Roast Seasoning Mix is a ready-to-use spice blend that turns a chuck roast into a tender, savory Mississippi-style meal in about an hour with a pressure cooker or all day in a slow cooker.

This seasoning mix, offered in a convenient 1.25-ounce packet and sold as a 12-pack, is formulated from McCormick herbs and spices and contains no artificial flavors. Designed for busy weeknights or simple weekend meals, it pairs with butter and pepperoncini to create the classic tangy, buttery sauce that makes Mississippi roast a crowd-pleaser. Use it with an Instant Pot for fast results or in a slow cooker for low-and-slow tenderness.

How does this mix speed up dinner on hectic evenings?

The blend is pre-measured and balanced so you skip measuring multiple spices. In an Instant Pot, the pressure-cooking environment extracts flavor quickly and softens connective tissue in the roast, delivering fork-tender meat in roughly 60 minutes. It’s a one-pot method that reduces prep and cleanup.

• Single 1.25 oz packet per roast; no measuring required
• Pressure-cooker ready for about 60 minutes total cook time
• Adds robust seasoning without extra pantry ingredients
• Minimal cleanup: brown, add liquids and spices, seal, cook

Can I use this mix in a slow cooker instead of an Instant Pot?

Yes — the packet is formulated for both pressure and low-heat braising. For slow cooking, follow the on-pack directions: cook eight hours on low or four hours on high. The low-and-slow method deepens flavor and produces very pull-apart tender beef.

• Slow cooker: 8 hours low or 4 hours high per instructions
• Same flavor profile whether pressure-cooked or slow-cooked
• Works with chuck roast, brisket, or other braising cuts
• Great for meal prep—make extra for sandwiches or tacos

What ingredients and flavor notes should I expect?

Built from McCormick spices, this mix creates a savory, slightly tangy sauce when combined with butter and pepperoncini peppers. The profile leans toward rich, buttery, and mildly piquant, complementing the natural beefiness of a chuck roast without overpowering it.

• Formulated with McCormick herbs and spices for consistent taste
• Designed to pair with butter and pepperoncini for classic flavor
• No artificial flavors listed on the pack
• Versatile: can enhance mashed potatoes, sandwiches, or grain bowls

Who is this for? Home cooks who want an easy, reliable shortcut to a traditional Mississippi roast — especially those using pressure cookers or slow cookers — will appreciate this McCormick mix. It’s ideal for families, meal preppers, and anyone seeking bold, comforting roast flavors without lengthy prep. Because it comes in a 12-pack, it’s also convenient for stocking a pantry, gifting to cooks, or planning several meals at once.

Ingredients

Onion Powder, Garlic Powder, Salt, Buttermilk, Yeast Extract, Spices (Including Parsley, Celery Seed), Dextrose, Rendered Beef Fat, Natural Flavor, Sodium Caseinate (Milk), Beef Fat, Enriched Bleached Wheat Flour (Flour, Malted Barley Flour, Niacin, Iron, Thiamine Mononitrate, Riboflavin, Folic Acid), Extractives of Garlic & Extractives of Onion.