Cosmos Restaurant
Food & Beverage · Diner

Cosmos Restaurant

316 S Maryland Ave, Wilmington, Delaware, 19804

Google Maps Updated: 16 May 2026
Authenticity Score: 70/100
About

Cosmos is a classic, no-frills diner that has been a staple for many locals for decades. While many customers love the nostalgic vibe and hearty portions, recent reviews point to a decline in service and food consistency. It's the kind of place where you know what you're getting, but the experience can vary wildly depending on the day. It remains a popular spot for a quick, affordable breakfast, despite some recent operational hiccups.

Our Review Process
20
Most Relevant
13
Newest
20
Highest rating
20
Lowest rating

We analyze 73 public reviews for Cosmos Restaurant using our data models and filter out spam to highlight only authentic feedback.

Performance Scores
Food Taste 65/100
Value for Money 72/100
Pro Tip

The breakfast menu is generally more reliable than the lunch/dinner options.

Classic Diner
Family Friendly
Pros & Cons

✓ What Works Well

  • Hearty portions
  • Nostalgic diner feel
  • Affordable prices

✗ Areas to Improve

  • Inconsistent service
  • Food temperature issues
  • Disorganized staff
Frequently Asked Questions
  • Is it open for Thanksgiving?
  • Are the portions large?
  • Is it family-friendly?
User Feedback

My go-to for breakfast

Service has been hit or miss lately

Classic diner food

Location Details
Street: 316 S Maryland Ave
Neighborhood: Wilmington Manor
City: Wilmington
State: Delaware
Postcode: 19804
Country: United States
Location
316 S Maryland Ave, Wilmington, DE 19804
Quick Info
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