Microgreens Rainbow Mix

The Up Vertical Farms Micro Rainbow Mix is one of the few packaged microgreens you'll actually find at Costco — a 6-ounce clamshell of mixed microgreens grown in vertical farms, sitting in the refrigerated produce section near the organic celery sticks and the salad blends. It's the kind of product that looks like it belongs at a fancy restaurant and shows up at Costco anyway, which is a good thing.

Quick Take: A surprisingly fresh, surprisingly long-lasting clamshell of vertically-farmed microgreens — small, peppery, photogenic, and genuinely useful in the kitchen. Verdict: Buy. Scores: Taste ⅘ · Value ⅗ · Convenience 5/5 · Stockpile Score ⅖.

First impression

I'll admit I'm a sucker for anything that makes a regular Tuesday salad look like it was plated at a wine bar. Microgreens do that — a tiny pinch of these on a soup or avocado toast and suddenly the dish reads "intentional" instead of "I had ten minutes."

I went into the clamshell expecting the usual packaged-microgreens letdown: half the box wilted by day three, the other half stuck to the lid.

What I actually got was a clamshell that stayed crisp for almost a week, with tiny purple, green, and pale-yellow leaves that looked closer to a farmer's market portion than a grocery-store one.

Price & value

Pricing varies by warehouse, but expect somewhere in the $5–$7 range for the 6-ounce clamshell. Per ounce, that's around $0.85–$1.15 — comparable to specialty grocery stores and meaningfully cheaper than buying microgreens at Whole Foods, which can run $5+ for a 1.5-oz container. The catch is the same one that hits all fresh greens at Costco: 6 ounces is genuinely a lot of microgreens for one household.

If you're not actively topping things with these every couple of days, you're going to throw some away. The math works for a household that already lives on salads, grain bowls, and avocado toast. For everyone else, the value evaporates fast.

Nutrition snapshot

Per 1-cup serving (~28g): ~10 cal · 1g carbs · 1g protein · trace fat. Notable: USDA organic, very low calorie, packed with vitamins K, A, C; surprising fiber for the volume. Effectively a flavor-and-color upgrade with negligible nutritional cost.

Taste, quality & how to use them

The flavor is the usual microgreens spectrum — peppery, slightly bitter, with a fresh-radish edge from the brassica varieties in the mix. They're not delicate-flavored; you'll taste them in a sandwich or on top of a soft-boiled egg.

The texture is the real win: snap, not slime. Vertical-farm setup means these are harvested young and packaged fast, and you can tell — the leaves haven't gone limp like the supermarket-aisle equivalents that traveled four days from a field.

For prep, less is more. Don't toss them in dressing — they'll wilt in minutes. Treat them as a finishing element: scattered on top of avocado toast, a poached egg, ramen, a grain bowl, or a steak. They're also useful in sandwiches, taking the place of mediocre lettuce and adding actual flavor.

Storage-wise, keep them in the original clamshell with the lid loose, in the crisper drawer; opening the lid to let some air in actually extends their shelf life. They've stayed usable for me up to about day 7, which is two days longer than I expected.

What other shoppers are saying

Across Costco product reviews and home-cook forums, the consistent praise is exactly what I experienced — shoppers say these stay fresh notably longer than other packaged microgreens, and the rainbow mix gets called out for visual impact in plated dishes.

The most common complaint is that the 6-ounce clamshell is too much for a single person to use up; a vocal minority also flags occasional batch inconsistency, where one box arrives crisp and gorgeous and another shows up already on the edge. Cross-check the leaves through the clamshell at the warehouse before you buy.

Who it's for & best uses

This is for the household that already cooks at home and wants the easy upgrade: the family that does grain bowls and salads on rotation, the home cook who plates things, the meal-prepper who wants something fresh on top of all those Tupperware containers.

People who eat mostly takeout, have packed schedules with no salad-making time, or live alone without strong "I will use 6 oz of microgreens this week" intentions should walk past this one. Vegetarians and anyone on a low-FODMAP or AIP-friendly track should know this is one of the more flexible greens available — they play nicely with most diets.

A few uses worth trying: avocado toast with a soft egg and a heavy pinch of the mix; ramen night with a small handful tossed in just before serving; or a simple Caprese where the microgreens replace basil and add a peppery edge.

Similar items

• Suja Organic Immunity Shots — same "wellness-leaning, fresh, organic" Costco shelf logic.
• Sambazon Organic Acai Juice — pairs naturally with microgreens-topped breakfast bowls.
• Costco Stuffed Bell Peppers — complementary mealtime base if you're meal-prepping with the greens on top.
• Kirkland Signature Organic Spring Mix Salad Blend — the bigger-volume daily-driver greens; microgreens layer on top.

The scores

• Taste — ⅘. Peppery, fresh, more flavorful than most packaged microgreens. Loses a point only because it's a finishing ingredient, not a star.
• Value — ⅗. Per-ounce price is fair, but the 6-oz volume only pays off if you'll use it consistently within a week.
• Convenience — 5/5. Pre-washed, ready to scatter, no chopping or trimming. Foolproof.
• Stockpile Score — ⅖. Fresh produce in a Costco volume is a stockpile-score killer. Plan to use these within 7 days; this is not a "buy two clamshells" situation.

Verdict: Buy

These are a solid Buy if you cook at home a few times a week and want a low-effort way to upgrade what's on the plate. They're more flavorful than most packaged microgreens, they last meaningfully longer, and the per-ounce cost is reasonable if you use them up. They're not Repeat-Buy material because the timing has to work — buy one, see if you finish it in time, then decide whether they earn a regular spot in your cart.

Where to find it

Where to find it: Microgreens Rainbow Mix, 6 oz at Costco. Pack size: 6 oz clamshell. Price: ~$5–$7, varies by warehouse. Storage: refrigerated, use within ~7 days. Aisle: refrigerated produce section.